Archive for January, 2012
North Carolina City Chooses InfoSewer
Posted by dickinsonre in swmm5 on January 31, 2012
North Carolina City Chooses InfoSewer
ArcGIS Based Sewer Modeling Package Helps Hendersonville, NC Model and Manage Its Collection System
Broomfield, Colorado, USA, January 31, 2012
Innovyze, a leading global innovator of business analytics software and technologies for wet infrastructure, today announced the City of Hendersonville, North Carolina, has selected InfoSewer for ArcGIS (Esri, Redlands, CA) as its sewer modeling platform. InfoSewer has helped define the standard in the industry for GIS-centric sewer network analysis, planning and design since 2003.
The City of Hendersonville’s Water and Sewer Department is responsible for providing water service to more than 62,000 residents and businesses of Hendersonville and Henderson County and sewer service to more than 19,000 residents and businesses. The Department is also responsible for the operation and maintenance of over 580 miles of water mains, 57 water pumping stations, 24 water storage tanks (ranging in size from 100,000 gallons to 5 million gallons), over 185 miles of sewer mains and 37 sewer pumping stations. “InfoSewer gives us the blend of powerful, easy-to-use analysis capabilities we need to effectively plan and manage our sewer system,” said Brent Detwiler, City Engineer. “We have a significant investment in Esri ArcGIS technology, and InfoSewer lets us leverage our GIS data for fast and accurate modeling.” Certified by the National Association of GIS-centric Software, InfoSewer is a powerful ArcGIS-based computer program for planning, designing, analyzing, and expanding sanitary, storm and combined sewer collection systems. It can be effectively used to model both dry-weather and wet-weather flows and determine the most cost-effective and reliable method of wastewater collection. Built atop ArcGIS, InfoSewer enables engineers and GIS professionals to work simultaneously on the same integrated platform, commanding powerful GIS analysis and hydraulic modeling in a single environment using a single dataset. InfoSewer is used worldwide by municipal engineers and planners to create detailed, accurate models of their sewer infrastructure systems. These models enable them to evaluate the effect of new developments, zoning changes, and other additional loads on system flows; pinpoint current and future problem areas; predict overflows and backups; and determine how best to restore needed capacity lost to infiltration and inflow with the least rehabilitation. Users also rely on these models to compute hydrogen sulfide generation and corrosion potential; analyze the rate of Biochemical Oxygen Demand (BOD) exertion; track sediment movement and deposition; trace pollutant contribution from source nodes; perform time of concentration calculations; calculate the amount of pollutant transported to the wastewater treatment plant; and assess pollutants’ impacts on receiving waters. Extensive scenario management functionality enables users to analyze existing or future sewage collection systems. The application also provides vital tools for meeting and exceeding environmental regulations and improving community relations via database queries and map displays. InfoSewer also delivers advanced design functionality and exponential increases in efficiency while simplifying use. Users can quickly and reliably design new sewer collection systems that consider standard design criteria such as flow depth-to-pipe diameter ratios, velocity, slope, soil cover depth, and pipe crown drop. Using user-input manhole locations and rules, InfoSewer calculates the optimal pipe and slope, invert elevation of conduits and manholes, soil cover depths at both ends of each pipe section, and cost of excavation and reinstatement to meet target design criteria. Results can be reviewed using profile plots with advanced labeling of 30 node and link variables, color-coded sewer maps of these variables, or 20 comprehensive tabular reports. The profile plots can be automatically updated in the model database for steady state and extended period simulations of new and existing designs, greatly simplifying the model-building process. Together, these capabilities help wastewater utilities worldwide dramatically raise productivity and efficiency by rapidly developing practical and optimal capital improvement strategies that minimize costs while improving system reliability, integrity and performance. By making engineering professionals more productive and their organizations more competitive, InfoSewer delivers benefits utilities can pass on to their customers through better designs and higher quality standards, achieved in a shorter turnaround time. “InfoSewer continues to evolve to meet the growing needs of top utilities around the globe,” said Innovyze Americas Operations Director J. Erick Heath, P.E. “We are thrilled that progressive leading utilities like Hendersonville are using InfoSewer to design and manage the most efficient sewer collection systems possible.”Philadelphia and Green Infrastructure
Posted by dickinsonre in Philadelphia and Green Infrastructure, swmm5 on January 29, 2012
Category: Water
Posted on: January 18, 2012 4:14 PM, by Liz Borkowski
Philadelphia and Green Infrastructure
Aging US water infrastructure has meant more leaks, flooded basements, and massive sinkholes in cities across the US. Fixing the water and sewer systems in need of repair will take billions of dollars, and it’s hard to find that kind of money in the budget these days.
Saqib Rahim reports for ClimateWire on Philadelphia’s decision to use “green infrastructure” rather than building a larger pipe system to handle the water that’s dumped on the city during severe storms. The combination of more intense storms and more paved area is a problem: Impervious surfaces like roads, sidewalks, and parking lots can’t absorb rainfall, so it ends up in the city’s stormwater collection system — which, in many older cities, is combined with the sewage system. When these combined systems are overwhelmed by heavy rainfall, the result is often that a rainfall-and-sewage mixture gets discharged into a local waterway. (Read more about this problem here.) Rahim explains Philadelphia’s solution to this problem:
Instead of building an even larger pipe system to address the issue, [Water Department Commissioner Howard] Neukrug pitched the most aggressive “green infrastructure” plan in the country. Through increased vegetation, rain barrels, sponge-like roads and other measures, the city would try to absorb more water where it fell. The ground would filter out pollutants, reduce strain on the pipelines and make the city a more attractive place.
Neukrug tells Rahim that the green infrastructure solution will cost Philadelphia $2 billion, compared to $8 billion to $10 billion for larger underground tunnels. But the part of the city’s plan that’s currently causing a controversy is what water customers will pay. They’ll now be charged not just for the water they use, but for their contributions to stormwater problems — that is, sites with a lot of impervious surfaces will pay more.
The average household will see an average bill rise from approximately $60 to around $63.50, Rahim reports. For some large businesses, though, costs could rise significantly over the next few years — and 100 of these businesses have hired a lobbyist and met with the Water Department to oppose implementation of the new billing practices.
I can understand why these businesses are upset. When they invest and plan for their businesses’ futures, they assume the rules will stay the same. Their extensive impervious surfaces are causing problems for public health, but they might not have realized that their decisions about what to pave were raising costs for the city’s residents (and everyone else affected when its sewage ended up in local waterways).
Changing the rules isn’t ideal, but it’s the best solution if the current rules create incentives for behavior that harms public health. If this country had never changed the rules to make businesses start bearing more of the cost for problems they cause the general public (externalities, in economic language), we’d still have rivers so polluted that they catch fire. Governments can ease the pain by providing grants or low-interest loans to help businesses and individuals invest in greener setups — and, Rahim reports, Philadelphia is offering loans to businesses that want to green their facilities. Increases in bills will also be capped at 10% or $100 per month.
Such an approach could also be used to address other public health issues like CO2 emissions — but so far, opposition to a carbon tax has been stronger than support. In the meantime, I’ll be watching Philadelphia’s effort and hoping it succeeds with a green solution to water infrastructure challenges.
Source: http://scienceblogs.com/thepumphandle/2012/01/changing_the_rules_in_the_midd.php#more
Example SWMM 5 Model for Activated Sludge
Posted by dickinsonre in Example SWMM 5 Model for Activated Sludge, swmm5 on January 28, 2012
Note: Example SWMM 5 Model for Activated Sludge
Here is one example of how to model an activated sludge tank. The image is Wikipedia (http://en.wikipedia.org/wiki/Activated_sludge) and is the watermark background in the SWMM 5 GUI. There is 100 lps inflow, 20 percent recycle and 10 percent sludge drawoff. You can adjust the amount of recycle and sludge altering the pump type 2 flows or if you want to increase the inflows – add more flow in the RawWater inflow node.
Three Flow Divider Link Example in SWMM 5
Posted by dickinsonre in swmm5, Three Flow Divider Link Example in SWMM 5 on January 28, 2012
Subject: Three Flow Divider Link Example in SWMM 5
You can have more than 2 downstream OUTLET Type links in the SWMM 5 dynamic wave solution. Each link, Under5, Over5 and ReturnFlow is an OUTLET Link with a rating curve depth/flow table. Depending on the depth in the storage node DIVIDER, the flow is computed from the table for links Under5, Over5 and ReturnFlow.
Output Statstics Manager to find negative flows in InfoSWMM
Posted by dickinsonre in Output Statstics Manager to find negative flows in InfoSWMM, swmm5 on January 28, 2012
Subject: Output Statstics Manager to find negative flows in InfoSWMM
Output Statstics Manager to find negative flows with these parameters:
1. Pipe Features
2. Use a Domain with your force mains
3. Select Flow
4. Event Dependent
5. Total – NOT Mean or Peak to find the negative and positive flows
6. Large NEGATIVE Flow Threshold
7. Large NEGATIVE Volume Threshold
8. Zero for Interevent Time to pick up all values
9. You will get a table that shows you the minimun flows, and a histogram of the flows
Flow Dividers in SWMM 5 Dynamic Routing
Posted by dickinsonre in Flow Dividers in SWMM 5 Dynamic Routing, swmm5 on January 28, 2012
Note: Flow Dividers in SWMM 5 Dynamic Routing
You can have flow dividers in SWMM 5 dynamic routing by using Storage Nodes for the dividers, OUTLET links for the downstream links and minimizing downstream HGL effects. The needed components are:
1. A Storage Node for the divider node as a OUTLET Link does not have a Surface Area,
2. Two or More OUTLET Links as the downstream diversion and cutoff links,
3. Two or More Rating Curves to divide the flow up based on either depth or head,
4. Pumps, Outfalls or Steep Sloped Links Downstream of the diversion and cutoff links to minimize downstream HGL effects
Keep and Dampen options and their effect on the four main terms of the St Venant equation
Posted by dickinsonre in Keep and Dampen options and their effect on the four main terms of the St Venant equation, swmm5 on January 24, 2012
Note: The Keep and Dampen options and their effect on the four main terms of the St Venant equation.
The four terms are are used in the new flow for a time step of Qnew:
Qnew = (Qold – dq2 + dq3 + dq4) / ( 1 + dq1)
when the force main or gravity main is full dq3 and dq4 are zero and Qnew = (Qold – dq2) / ( 1 + dq1)
The dq4 term in dynamic.c uses the area upstream (a1) and area downstream (a2), the midpoint velocity, the sigma factor (a function of the link Froude number), the link length and the time step or
dq4 = Time Step * Velocity * Velocity * (a2 – a1) / Link Length * Sigma
where Sigma is a function of the Froude Number and the Keep, Dampen and Ignore Inertial Term Options. Keep sets Sigma to 1 always and Dampen set Sigma based on the Froude number, Ignore sets Sigma to 0 all of the time during the simulation
the dq3 term in dynamic.c uses the current midpoint area (a function of the midpoint depth), the sigma factor and the midpoint velocity.
dq3 = 2 * Velocity * ( Amid(current iteration) – Amid (last time step) * Sigma
dq1 = Time Step * RoughFactor / Rwtd^1.333 * |Velocity|
The weighted area (Awtd) is used in the dq2 term of the St. Venant equation:
dq2 = Time Step * Awtd * (Head Downstream – Head Upstream) / Link Length or
dq2 = Time Step * Awtd * (Head Downstream – Head Upstream) / Link Length
Normally, dq1 (Friction Loss / Maroon in the Graph) balances dq2 (Water Surface Slope Term or Green in the Graph) but often for links with a large difference between upstream and downstream depths dq4 (Red in the Graph) can have a significant value. If dq4 or dq3 are important then the depth of water to increases to pass the same flow using the Keep option over the Ignore. If you have a link with a Froude number near or over 1.0 (Supercritical) then using Keep or Dampen for the Options may result in depth differences. The effect of Keep is to increase the “loss” terms in the St Venant Equation. The effect of Dampen and Ignore is to decrease the sum of the “loss” terms in the St. Venant Solution and lower the simulated depth.
Rooftop gardens could solve Singapore’s flooding problem
Posted by dickinsonre in Rooftop gardens could solve Singapore's flooding problem, swmm5 on January 20, 2012
Rooftop gardens could solve Singapore’s flooding problem
By Tyler Falk | January 18, 2012, 9:09 AM PST
From SmartPlanet
In the last two years, rapid urbanization and changing weather patterns have lead to major flash floods in Singapore.
“[It] can be safely presumed that the weather patterns in Singapore have changed,” said Singapore’s Minister for the Environment and Water Resources last year after a flash flood where in one day Singapore received 77 percent of the amount of rainfall that usually falls in June. “It is very likely that our drainage systems will have to be redesigned to cope with such intense flashes.”
Singapore convened a panel to come up with the best options for dealing with flash floods and stormwater runoff. Their suggestion? Not an overhaul of the drainage system, but rooftop gardens.
Big infrastructure projects are costly and take time to replace. And while the upgrading the drainage system is likely necessary, the panel suggests a quick fix to Singapore: require rooftop gardens on all new and retrofitted buildings. Rooftop gardens don’t just add beauty to the city, they can also play a big role in mitigating floods by reducing and slowing stormwater runoff and filtering pollutants.
But it’s not just rooftop gardens, Singapore’s Today reports:
These measures are to be complemented with diversion canals, storage tanks along “pathways” of drains, drain capacity improvements, and finally, flood barriers, raised platform levels – some of which is already being done, but “could be carried further”, noted Prof Balmforth.
The panel also suggested storage tanks, rain gardens, and porous pavement.
Note, you can model the storage tanks, rain gardens and the porous pavement in SWMM 5 using Storage nodes in hydraulics and LID or Low Impact Development tools in a SWMM 5 Subcatchment.
Photo: HenryLeongHimWoh
/Flickr
Urbanisation has led to increase in storm water run-off: Expert panel [Today]
Innovyze Surge Line Brings Surge Events to Life With Cutting-Edge Pipe Profile Animations
Posted by dickinsonre in swmm5 on January 17, 2012
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Innovyze Surge Line Brings Surge Events to Life With Cutting-Edge Pipe Profile Animations High Quality Animation Gives Engineers Inside View of Model Activities for the First Time |
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Broomfield, Colorado USA, January 17, 2011 — Innovyze, a leading global innovator of business analytics software and technologies for wet infrastructure, today announced the worldwide release of the SurgeAnimatemodule for its industry-leading surge product line. The breakthrough pipe profile animation module brings a new level of visualization and interpretation power to transient analysis, helping engineers quickly gain a thorough understanding of the complex phenomena occurring within their distribution systems. Available for InfoSurge and InfoWorks TS, the module is ideal for assessing the strength and effectiveness of water supply and distribution systems under a wide range of hydraulic transient conditions, from routine operation to emergency states. It has unprecedented power to help users confidently determine the best combination of surge protection devices to minimize the impact of objectionable pressure transients. The enhanced product suite reflects Innovyze’s vanguard position in the water industry and its continuing commitment to delivering pioneering technology for improving the safety and reliability of the world’s water supply. “This key new modeling functionality makes it easy to get a handle on how transient waves propagate over time in distribution systems, allowing water utilities worldwide to better see how transient events are mitigated by surge protection devices,” noted Christopher W. Baxter, Ph.D., President of HYDRANNT Consulting Inc., in Port Coquitlam, BC, Canada. “Innovyze continues to raise the standard in the industry.” Anticipating and controlling transient response is critical to ensuring the protection, integrity, and effective/efficient operation of water distribution systems. Transient responses can introduce pressures of sufficient magnitude (upsurge) to burst pipes and damage equipment. The resulting repercussions can range from extended service outages to loss of property and life. Transient responses can also produce sub-atmospheric pressures (downsurge) that can force contaminated groundwater into the distribution system at a leaky joint, crack or break, leading to grave health consequences when carried out downstream in the pipe system. Sustained sub-atmospheric pressures may also lead to cavitation and water column separation, resulting in severe “water hammer” effects as the vapor cavity collapses. The Innovyze transient flow simulation technology suite addresses every facet of pressure surge analysis and its role in utility infrastructure management and protection, delivering the highest rate of return in the industry. It provides the engineer-friendly simulation framework water utilities need to identify characteristics that can make their water supply and distribution systems more susceptible to transient pressure events. Users can quickly and efficiently assess the effects of power outages, pump shutdowns and startups, valve closures, rapid demand and pump speed changes, as well as the efficacy of any combination of surge protection devices. The product suite also accurately simulates cavitation and water column separation and evaluates their intensity. Its blazing simulation speed, unrivalled in the industry, makes transient analysis an easier and more enjoyable task. The new SurgeAnimate module enables users to create live animations of pipe profiles simply by specifying the first and last nodes; the rest is done automatically. Tank and reservoir levels, pump speeds, water flow or velocity rates are all animated. Many surge devices (such as air valves and bladder tanks) are also animated in detail. Animation speed can be set and stopped or restarted interactively at any simulation time period, allowing the user to thoroughly view and analyze the model’s transient activities (including cavitation pressure). Animations can be saved as AVI files. Armed with these mission-critical network modeling capabilities, water utilities can more accurately assess their susceptibility to low or negative pressures caused by transient surges, identify vulnerable areas and risks, evaluate and design sound control and mitigation measures, and determine improved operational plans and security upgrades. “The ability to confidently assess distribution system vulnerability to pressure transients is becoming more critical every day,” said Innovyze President and Chief Operating Officer Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, F. ASCE. “Our new SurgeAnimate module makes models come alive, allowing users to go inside the pipes and network elements for the first time. This unprecedented ability to see and experience model transient activities in real time is critical to designing reliable, enduring systems and protecting public health.” |
Surcharged Node and the Link Connection in SWMM 5
Posted by dickinsonre in Surcharged Node and the Link Connection in SWMM 5, swmm5 on January 16, 2012
Subject: Surcharged Node and the Link Connection in SWMM 5
A surcharged node in SWMM 5 uses this point iteration equation (Figure 1):
dY/dt = dQ / The sum of the Connecting Link values of dQ/dH
where Y is the depth in the node, dt is the time step, H is the head across the link (downstream – upstream), dQ is the net inflow into the node and dQ/dH is the derivative with respect to H of the link St Venant equation. If you are trying to calibrate the surcharged node depth, the main calibration variables are the time step and the link roughness:
1. Mannings’s N
2. Hazen-Williams or
3. Darcy-Weisbach
The link roughness is part of the term dq1 in the St Venant solution and the other loss terms are included in the term dq5. You can adjust the roughness of the surcharged link to affect the node surcharge depth.
Figure 1. The Node Surcharge Equation is a function of the net inflow and the sum of the term dQ/dH in all connecting links. Generally, as you increase the roughness the value of dQ/dH increases and the denominator of the term dY/dt = dQ/dQdH increases.
Figure 2. The value of dQ/dH in a link as the roughness of the link increases.
HOW MOSQUITOES FLY IN RAIN from 3Quarks
Posted by dickinsonre in HOW MOSQUITOES FLY IN RAIN from 3Quarks, swmm5 on January 16, 2012
HOW MOSQUITOES FLY IN RAIN
Mariel Emrich in Talking Science:
Mosquitoes are as adept at flying in rainstorms as under clear skies. But how is that possible? Wouldn’t rain crush a mosquito to the ground since mosquitoes weigh 50 times less than raindrops?
David Hu, an assistant professor of mechanical engineering and biology at the Georgia Institute of Technology, and his graduate research assistantAndrew Dickerson have found that while mosquitoes do get hit by raindrops, they don’t get crushed by them.
Hu discussed their research in a talk at November’s APS Division of Fluid Dynamics Meetingthat was entitled “How Mosquitoes Fly in the Rain”.
The researchers measured the impact forces of raindrops on both regular mosquitoes and custom-built mosquito mimics. The mimics were made from small Styrofoam spheres of mosquito-like size and mass. They used high-speed video to capture images of the mosquitoes getting hit with raindrops.
Since the bugs fly so slowly (a maximum of 1 meter per second) compared to the drops (which fall between 5 to 9 meters per second), the mosquitoes cannot react quickly enough for avoidance, and most likely cannot sense the imminent collision.
More here.
Posted by Abbas Raza at 03:42 PM | Permalink
How to Make Icons and Expand the Toolbars in infoSWMM and InfoSewer
Posted by dickinsonre in How to Make Icons and Expand the Toolbars in infoSWMM and InfoSewer, swmm5 on January 15, 2012
Subject: How to Make Icons and Expand the Toolbars in InfoSWMM and InfoSewer
You can customize the toolbars in InfoSWMM and InfoSewer by clicking on Customize and performing 4 steps:
Step 1. Click on Customize
Step 2. Move the tool from the Command list to the toolbar.
Step 3. Change the Button Image for the Default Style.
Step 4. The Toolbar now has a new Icon for the InfoSWMM command.
Step 1. Click on Customize
Step 2. Move the tool from the Command list to the toolbar.
Step 3. Change the Button Image for the Default Style.
Step 4. The Toolbar now has a new Icon for the InfoSWMM command.
How do I correct a fatal error resulting in automatic shutdown in ArcMap?
Posted by dickinsonre in How do I correct a fatal error resulting in automatic shutdown in ArcMap?, swmm5 on January 15, 2012
Subject: How do I correct a fatal error resulting in automatic shutdown in ArcMap?
If you cannot open ArcMap, InfoSewer or InfoSWMM at all and get a fatal Esri error the problem may be the file normal.mxt
“If the startup file in ArcGIS Desktop or component applications (e.g., ArcMap, ArcGlobe, ArcScene) is corrupt, a fatal error can occur. Renaming or deleting the existing startup file will often resolve the error. Once the corrupted startup file is removed, ArcGIS will create a new startup file after the application is launched (http://kb.iu.edu/data/asuv.html).”
To remove the startup file in Windows XP for Arc GIS 10 go to the directory C:\Documents and Settings\Your Name\Application Data\ESRI\Desktop10.0\ArcMap\Templates and delete the file Normal.mxt. You then reopen Arc Map and the normal.mxt file will be recreated and smaller. You will have to reset the ArcMap toolbars to better control InfoSewer and InfoSWMM.
SWMM 5 Engine Updates between v13 and v22 by Category
Posted by dickinsonre in SWMM 5 Engine Updates between v13 and v22 by Category, swmm5 on January 13, 2012
Subject: SWMM 5 Engine Updates between v13 and v22 by Category
The complete list of engine and GUI changes can be found in this text file on the EPA Site http://www.epa.gov/nrmrl/wswrd/wq/models/swmm/epaswmm5_updates.txt
This note categorizes the engine changes by aggregating dynamic wave solution changes, surface ponding changes, RDII and Hydrology for example. The number preceding each change is the change number per engine update – the version of the engine update is shown at the end of each change paragraph. The Categories are General Changes, Dynamic Wave Changes, RDII Changes, Infiltration and Surface Runoff Changes, Climate Data Changes, Rainfall Changes, LID Changes and Water Quality Changes.
Call for Papers Announced for 2012 Asia Pacific Water and Sewer Systems Modeling Conference
Posted by dickinsonre in Call for Papers Announced for 2012 Asia Pacific Water and Sewer Systems Modeling Conference, swmm5 on January 10, 2012
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Call for Papers Announced for 2012 Asia Pacific Water and Sewer Systems Modeling Conference Major Industry Event to Unite Global Modeling Experts August 21-22, 2012, at Gold Coast, Australia |
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| Broomfield, Colorado USA, January 10, 2012 — Innovyze, a leading global innovator of wet infrastructure modeling and simulation software and technologies, today announced the opening of registration and a call for papers for the fifth annual Asia Pacific Water and Sewer Systems Modeling Conference. The event, widely considered to be the most comprehensive and significant wet infrastructure modeling, design and management technology conference of its kind, will be held from August 21-22, 2012, at the Holiday Inn, Surfers Paradise on Australia’s Gold Coast.
This once-a-year learning opportunity is sponsored by major water utilities and associations in the region. It will feature keynote presentations from leaders in hydraulic and water quality modeling throughout Asia, Europe, North America, Australia and New Zealand. The conference also incorporates an annual gathering of Innovyze software users and their managers who want to sharpen their skills, expand their knowledge, and share best practices with their peers. The ultimate goals are to design, operate and manage better systems; protect the environment; and safeguard public health. The forum will allow water, wastewater and stormwater professionals to explore new ways of using engineering GIS technology, advanced network modeling and simulation, and asset management applications. Participants will learn how they can leverage these tools to do their jobs better, easier, faster and more efficiently; maximize their return on software investments; and make their organizations more globally competitive. They will also earn valuable Chartered Professionals Continued Professional Development (CPD) hours. “Potable water and sanitary sewer systems are essential for a healthy and vibrant community,” notes Paul Banfield, Business Development Manager for Innovyze and chairman of the conference organizing committee. “Proper management of water and wastewater assets plays a critical role in the provision of these vital services. This leading wet infrastructure focused conference is both fun and educational. I am confident that attendees will come away better positioned to provide their communities with reliable and cost-effective safe drinking water and sanitary sewer systems.” To supplement the keynote presenters and speakers already confirmed, the organizing committee is seeking relevant and unique presentations. Key topics include:
The agenda will also feature hands-on software demonstrations, discussions of business implementation and management issues, industry solutions presentations, key technology updates, and social and networking events. Keynote speaker Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, F.ASCE, President and Chief Operating Officer of Innovyze, will address the conference on the latest technologies in water, stormwater, and wastewater network modeling, capital planning and asset management. “This exceptionally fun and educational event is always guaranteed to energize and inspire,” said Boulos. “It provides a wonderful forum for sharing best practices and exploring the state of the art in water/wastewater infrastructure engineering, design and management solutions designed to help solve everyday challenges and problems. Attendees can carry this valuable knowledge back to their organizations, opening new avenues for increasing productivity and performance, enhancing project quality, maximizing return on their software investments, gaining a competitive edge on the future, advancing their careers, and improving the quality of life in their communities. They’ll leave restored, energized, and better prepared to accomplish great things. They’ll also play a significant a role in the future of Innovyze and our products, inspiring us and pushing us to build great products, a great company, and a great community.” Abstract Submission |
How to divide the Inflow at a Node in InfoSWMM
Posted by dickinsonre in How to divide the Inflow at a Node in InfoSWMM, swmm5 on January 5, 2012
Subject: How to Divide the Inflow at a Node in InfoSWMM
In SWMM 5 only the Kinematic Wave solution allows a flow divider at a node to divide the Inflow to node to two downstream links, but you can use the Inflow/Outflow Outlet type in InfoSWMM to divide the inflow based on a Inflow/Outflow Diversion Table (Figure 1). For example, in InfoSWMM it is possible to have two downstream links from a Node that are Outlet types Inflow/Outflow so that the low flow goes down one link and the high flow goes down the other link (Figure 2 and Figure 3). The low flow and the high flow link use different diversion tables in which the tables are constructed so that the flow is positive in one link and zero in the other to a dividing flow value and then zero and positive for the same two links after the dividing flow value ( 5 cfs in the example).
Figure 1. Types of OUTLETS in InfoSWMM and SWMM 5
Figure 2. Example low flow and high flow Outlet Links to divide the total inflow at the upstream node at 5 cfs.
Figure 3. The flow is divided into the low and high flow links at the dividing flow of 5 cfs.
CDM and Wilbur Smith Associates Proudly Serving Clients as CDM Smith
Posted by dickinsonre in CDM and Wilbur Smith Associates Proudly Serving Clients as CDM Smith, swmm5 on January 3, 2012
CDM and Wilbur Smith Associates Proudly Serving Clients
as CDM Smith
New brand reflects emergence of a full service global leader
January 01, 2012
CAMBRIDGE, Massachusetts—What began in February 2011 with joining of two industry forces has culminated in a fully integrated provider of comprehensive water, environment, transportation, energy and facilities services united under the new brand CDM Smith.
According to Chief Executive Officer Richard D. Fox, “CDM Smith brings together CDM and Wilbur Smith Associates, two firms of rich heritage and world-wide reputation. With 123 years of combined cross-discipline expertise, our people bring a wealth of knowledge, experience and dedication to every client relationship and each project. While our name is different and our portfolio of services has expanded, we remain committed to doing what is right for our clients, our communities, each other and the future.”
Proving to be better together, CDM Smith represents almost 6000 employees excelling in 100 technical specialties, partnering with clients to solve challenges in 28 countries around the world.
CDM Smith provides lasting and integrated solutions in water, environment, transportation, energy and facilities to public and private clients worldwide. As a full-service consulting, engineering, construction, and operations firm, we deliver exceptional client service, quality results and enduring value across the entire project life cycle.
Innovyze Launches 2012 Technical Webinar Series
Posted by dickinsonre in Innovyze Launches 2012 Technical Webinar Series, swmm5 on January 3, 2012
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Innovyze Launches 2012 Technical Webinar Series Registration Open for Ten-Session Series Led by Innovyze Engineers, Launching February 7, 2012 |
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| Broomfield, Colorado USA, January 3, 2011 — Innovyze, a leading global innovator of business analytics software and technologies for wet infrastructure, today announced the dates for its 2012 Technical Webinar series. The ten-session event begins February 7, 2012, and continues through June 2012. Each session is open to utilities and their consultants. Admission is free, but pre-registration is required.
To register, visit http://www.innovyze.com/education/webinars. “Our customers are continuously looking for cost-effective ways to grow their knowledge bases and learn about emerging technologies,” said Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, F.ASCE, President and COO of Innovyze. “Each of these important webinars will be led by a technical engineering expert. The sessions will cover a wide range of key wet infrastructure topics, from capital planning and carbon footprint analysis to flood modeling, advanced water quality and real time modeling, and advanced business analytics applications. We anticipate these unique offerings to draw record attendance.” Webinar Schedule Risk-based Prioritization of Sewer Rehabilitation with CapPlan Sewer Real Time Water Distribution Forecasting and Response with IWLive Modeling the Integrated Collection System from Rivers to Pipes with InfoWorks ICM Using Hydraulic Models for Energy Management and Carbon Footprint Reduction Advanced Business Analytics for Sewer Systems Inside ArcGIS, Featuring InfoMaster Modeling Two-Dimensional Overland Flow with InfoSWMM 2D Risk-based Prioritization of Water Main Replacement featuring CapPlan Water Modeling and Eliminating Transients in Water Distribution Systems with InfoSurge Designing and Implementing a Unidirectional Flushing Program in Record time with InfoWater UDF Monitoring a Distribution System for Contamination Events |
Drawing features to show multiple attributes in InfoSWMM
Posted by dickinsonre in Drawing features to show multiple attributes in InfoSWMM, swmm5 on January 2, 2012
Subject: Drawing features to show multiple attributes in InfoSWMM
Your network data usually has a number of different attributes that describe the features it represents (Figure 3). While you’ll commonly use one of the attributes to symbolize the
data—for example, showing one quantity in the InfoSWMM Map Display —you may sometimes want to use more than one. One way to show multiple attributes in InfoSWMM is to copy layers and then use the Layer Properties to color, map or otherwise display the multivariable data (Figure 1). For example, Figure 2 shows the important Subcatchment parameters of Slope, Imperviousness and Width as graduated colors, dots and a pie shape, respectively.
Figure 1. Use the Symbology Tab to select the attribute you want to show and the way to show the attribute.
Figure 2. The Subcatchment slope is shown in graduated colors, the percent impervious in scattered dots a a measels map and the Subcatchment Width is shown in a pie graph with the size of the pie a function of the total width.
Figure 3. Physical Data Estimated from a DEM using the Subcatchment Manager in InfoSWMM.
Create Watershed Data Using InfoSWMM Subcatchment Manager
Posted by dickinsonre in Create Watershed Data Using InfoSWMM Subcatchment Manager, swmm5 on January 2, 2012
Subject: Create Watershed Data Using InfoSWMM Subcatchment Manager
The Subcatchment Manager of InfoSWMM will help calculate most of the physical parameters associated with a Watershed or Subcatchment in SWMM 5 from a Digital Elevation Data (Step 1). The Subcatchments slope is estimated from a slope raster (Step 2) and the Slope Calculator (Step 4). The created watershed area are calculated using the command Update DB from Map (Step 6) along with the Subcatchment Width (Step 3) and the Impervious Area (Step 5). The physical parameters estimated from the DEM are shown in Figure 1.
Figure 1. Physical Data Estimated from a DEM using the Subcatchment Manager in InfoSWMM.
Step 1. Use the command Create Flow Stream to create a Flow Stream for the DTM or DEM that can be used later.
Step 2. Create a Slope Raster from the DEM for later usage in the Slope Calculator.
Step 3. Calculate the Width of the Subcatchment using one of five methods.
Step 4. Calculate the Slope in percent from the Slope Raster created in Step 2.
Step 5. Populate the Impervious area percentage using a Parcel shape file and the Created Subcatchments.
Step 6. Use Arc Map to calculate the area of the Subcatchments using the command Update DB from Map and the following Operation Flags.
Create Watersheds Using InfoSWMM Subcatchment Manager
Posted by dickinsonre in Create Watersheds Using InfoSWMM Subcatchment Manager, swmm5 on January 2, 2012
Subject: Create Watersheds Using InfoSWMM Subcatchment Manager
The Subcatchment Manager of InfoSWMM will help calculate most of the physical parameters associated with a Watershed or Subcatchment in SWMM 5 from a Digital Elevation Data (Step 1). The Subcatchments area created from a Flow Direction Raster (Step 2) and a Flow Accumulation Raster (Step 4) after filling in any Sinks in the DEM (Step 3). The created watersheds (Step 5). The physical parameters estimated from the DEM are shown in Figure 1.
Figure 1. Physical Data Estimated from a DEM using the Subcatchment Manager in InfoSWMM.
Step 1. Find, Create or Otherwise Locate a TIN, DEM or DTM for the project area with elevation data that you can use with the InfoSWMM Subcatchment Manager.
Step 2. Create a Flow Direction Raster using the Watershed Command.
Step 3. Check to see if there are Sinks in the Elevation Data that have to be filled using the Filled Sink Command.
Step 4. Create a Flow Accumulation Raster
Step 5. Create the Watersheds from the Flow Direction and Flow Accumulation Rasters.
Continuous Simulation Aids for InfoSWMM
Posted by dickinsonre in swmm5 on January 1, 2012
Subject: Continuous Simulation Aids for InfoSWMM
If you have a large network and especially if you are doing continuous simulation then you want to have many tools for helping you understand the network and the simulation results.
v In InfoSWMM and H2OMAP SWMM you can have a Base Network with many differenct Child Scenaio generations. A Child can be either based on the Base Scenario of a different generation Child Scenario.
v Facility Manager allows you to make inactive and active sets areas of your network, which makes simulating larger and smaller models a snap to do in InfoSWMM. Run Manager lets you control which areas of the model network gets save to the binary graphics file (Figure 1).
v The Process Control in Run Manager (similar to the process control in SWMM 5) allows the modeler to control which processes are simulation to help in her model calibration.
Figure 1. Scenarios, Facility Manager and Run Manger Options.
Figure 2. Run Manager Process Controls.
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You are currently browsing the archives for January, 2012
SWMM 5 Posterous- Country of Samoa Chooses Innovyze Smart Water and Sewer Network Modeling Solutions May 29, 2012
- Saving to previous versions of ArcGIS in InfoSWMM and InfoSewer May 29, 2012
- Historical SWMM 5 and SWMM 4 Engines and Examples May 28, 2012
- Link Iterations in the SWMM 5 Dynamic Wave Solution May 27, 2012
- How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5? May 26, 2012
- SWMM 5 Precipitation Options May 26, 2012
- SWMM 5 Leaping Weir Example May 24, 2012
- Force Main Friction Loss in InfoSWMM and the Transition from Partial to Full Flow May 24, 2012
- Dry lands getting drier, wet getting wetter: Earths water cycle intensifying with atmospheric warming May 22, 2012
- Upcoming Conferences, User Groups, Seminars and Webinars May 17, 2012
- Innovyze Releases InfoMaster Sewer; Next Generation Analytics-Centric Asset Management for Smart Water Networks for Digital Utilities May 15, 2012
- Saving an Output Relate in InfoSWMM directly to Excel using Arc Tool Box May 14, 2012
- Example DUPUIT-FORCHHEIMER APPROXIMATION FOR SUBSURFACE FLOW Model in SWMM 5 May 13, 2012
- Example Groundwater Model in SWMM 5 May 13, 2012
- Example SWMM 5 Snowmelt Model May 12, 2012
- My History with Various Versions of SWMM: SWMM3, SWMM4, SWMM5, XP-SWMM and InfoSWMM May 6, 2012
- Runoff Routing Options Example in SWMM 5 May 6, 2012
- Example FM SWMM 5 model with and without Surcharge Depth May 5, 2012
- How to Edit the Subcatchment Polygons in InfoSWMM with Arc Map April 25, 2012
- Average Residence time in InfoSWMM and H2OMAP SWMM April 25, 2012
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