Month: July 2013

How to Set Up an InfoSWMM 2D Simulation Polygon and Mesh

Subject: How to Set Up an InfoSWMM 2D Simulation Polygon and Mesh    Step 1: Create the 2D Database      Step 2: Verify the Creation of the 2D Database      Step 3: Create the background Simulation Polygon for the 2D simulation     Step 4: Create the Mesh on the 2D Simulation Polygon     Step 5: Run the […]

This is how you use the batch file in SWMM 5 to make a Report

This is how you use the batch file in SWMM 5 to make a Report  Step 1:  You make a bat file – here is a sample file that uses the swmm5.exe program  swmm5.exe Example1.inp  D:\swmm5.0.021\bob.rpt pause     Step 2:  Set up the Report Data in the input file   [REPORT] CONTROLS NO NODES   ALL […]

How to change the Maximum Infiltration in a DB Table of InfoSWMM and H2OMAP SWMM

Note:  How to change the Maximum Infiltration in a DB Table of InfoSWMM and H2OMAP SWMM   There are a lot of methods in InfoSWMM and H20MAP SWMM to change the infiltration data.  You have the ability to change it for   1.      an individual subcatchment using the Attribute Browser 2.      by soil type and 3.      the […]

How to change the background color and data view in InfoSewer and InfoSWMM

Subject:  How to change the background color and data view in InfoSewer and InfoSWMM   Tip 1:  Use the command View> Data Frame Properties > Frame > Background (change color) to change the background color     Tip 2:  Use the command View> Data Frame Properties > Data Frame > Extent to change the default view in Arc GIS.  You would use […]

How to Make an Internal Outfall into an External Outfall when you have more than one link connected to an Outfall in SWMM5

Subject:  How to Make an Internal Outfall into an External Outfall when you have more than one link connected to an Outfall Step 1:  Identify the Problem “ERROR 141: Outfall J-561 has more than 1 inlet link or an outlet link.” Means […]

Orifice Critical Depth for Separating Weir Flow from Orifice Flow for Bottom Outlet Orifices in SWMM 5

Note:  Orifice Critical Depth for Separating Weir Flow from Orifice Flow for Bottom Outlet Orifices   The Critical height is the opening where weir flow turns into orifice flow. It equals (Co/Cw)*(Area/Length) where Co is the orifice coeff., Cw is the weir coeff/sqrt(2g), Area is the area of the opening, and Length = circumference of the opening. […]

เครื่องคิดเลข EPA แห่งชาติ Stormwater

เครื่องคิดเลข EPA แห่งชาติ Stormwater ได้รับการปล่อยตัวในวันนี้โดย EPA (ดร. ลูอิส Rossman) เป็นสหรัฐอเมริกาทั่วประเทศ Stormwater เครื่องคิดเลข เป็นเครื่องมือใหม่บนพื้นฐานของ SWMM ที่อาจจะเป็นที่สนใจนี่คือ จะให้ผู้สร้างแบบจำลองที่ไม่ได้ด้วยวิธีที่ง่ายและรวดเร็วอย่างจริงจังประเมินปริมาณน้ำที่ไหลบ่า stormwater จากคุณสมบัติของพวกเขา สำหรับผู้เชี่ยวชาญ SWMM คุณก็มีวิธีง่ายๆในการดาวน์โหลดข้อมูลปริมาณน้ำฝนในระยะยาวและอัตราการ ET รายเดือนสำหรับการใช้งานในรูปแบบของคุณ SWMM  ของ EPA เครื่องคิดเลข Stormwater แห่งชาติขณะนี้มีให้สาธารณะ  http://www.epa.gov/nrmrl/ wswrd / WQ / รุ่น / […]

ईपीए राष्ट्रीय stormwater कैलक्यूलेटर

ईपीए राष्ट्रीय stormwater कैलक्यूलेटर एक संयुक्त राज्य अमेरिका राष्ट्रव्यापी stormwater कैलक्यूलेटर है ईपीए (डॉ. लुईस Rossman) द्वारा आज जारी  यहाँ ब्याज की हो सकती है कि SWMM के आधार पर एक नया […]

EPA國立雨水計算器

EPA國立雨水計算器 今天公佈的EPA(劉易斯·羅斯曼博士)是一個美國全國雨水計算器 這裡是一個新的工具,基於SWMM的利益,這可能是。它提供了一個快速簡便的方法,嚴格從他們的物業估計雨水徑流量的非建模。你SWMM專家,它提供了一個簡單的方法來下載長期降雨SWMM模型使用的數據和每月ET率是現已到的公共EPA的國家雨水計算器  / WQ /模型/的SWC / EPA的國家雨水計算器是一個桌面應用程序,估計每年雨水量和頻率的徑流來自特定網站在美國的任何地方。估計是基於當地的土壤條件,土地覆蓋,與歷史雨量紀錄。  計算器訪問幾個國家數據庫提供了土壤,地形,雨量,蒸發選址信息。用戶提供網站的土地覆蓋信息,並選擇低影響開發(LID)控制的類型,他們想用盧羅斯曼供水和水資源部國家風險管理研究實驗室美國 環保局辛辛那提,俄亥俄州45268 EPA全國雨水計算器圖形用戶界面 via Blogger http://www.swmm5.net/2013/07/epa.html

SWMM5 Groundwater Flow Components

Note:  There are three sub flow components in the calculation of the groundwater flow from a SWMM 5 Subcatchment.    1st Component: Flow = Groundwater Flow Coef. * (LowerDepth – Aquifer Bottom to Node Invert) ^ Groundwater Flow Exponent   2 nd Component: Flow = SurfaceWater Flow Coef. * (Aquifer Bottom to Water Surface – Aquifer Bottom to […]

Link Depth and Node Depth Relationship in SWMM 5

Note:  The depth in a manhole or node in SWMM 5 can be higher than the depth in the connecting links if the link is surcharged.  Typically the upstream link depth is equal to the upstream node depth (if there is not link offsets) and the downstream link depth is equal to the downstream node depth (if […]

Export from WeatherUnderground using the CSV File Export Option to InfoSWMM

Note:  Export from WeatherUnderground using the CSV File Export Option to InfoSWMM    Weather Underground is a site that provides excellent local weather information in the form of graphs, tables and csv files. You can use the data very easily in InfoSWMM by copying from Excel to a time series in InfoSWMM. Here is the rainfall for […]

Create Watersheds Using InfoSWMM Subcatchment Manager

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 […]

Real Time Control (RTC) rule for the opening and closing of an orifice in SWMM 5

Here is an example Real Time Control (RTC) rule for the opening and closing of  an orifice.   RULE Orifice1 IF SIMULATION  CLOCKTIME >=  01:00:00 AND SIMULATION CLOCKTIME <=  2:00:00 THEN ORIFICE OR1@82309b-15009b SETTING = 1 ELSE ORIFICE OR1@82309b-15009b SETTING = 0 PRIORITY 1 ; Opens […]

LPS Output Units when the Inflow is CMS in InfoSWMM and H2OMap SWMM

LPS Output Units when the Inflow is CMS 1.   The inflow time series is in units of CMS,2.   If you set the internal units to LPS in Run Manager,3.   Set the output units to LPS in Output Unit Manager,4.   Add a Scale multiplier of 1000 in the Inflows DB Table then The inflows do not have to be altered, the internal model flows […]

Example RTC rule for the opening and closing of the orifice in SWMM5

Here is an example Real Time Control (RTC) rule for the opening and closing of  an orifice in SWMM5. RULE Orifice1 IF SIMULATION  CLOCKTIME >=  01:00:00 AND SIMULATION CLOCKTIME <=  2:00:00 THEN ORIFICE OR1@82309b-15009b SETTING = 1 ELSE ORIFICE OR1@82309b-15009b SETTING = 0 PRIORITY 1 ; […]

InfoSewer Inflow Control for a Pump with a Pump Curve

InfoSewer Inflow Control for a Pump with a Pump Curve   You can control the pumps in InfoSewer and H2OMap Sewer by using a Pump Control which will control the pump based on:  1.       Volume 2.      Level 3.      Discharge 4.     Inflow 5.      Time  If you use a By Inflow control the pump speed of the pump is increased or decreased to make […]

Global Dry Weather Flow Reduction in InfoSWMM and H2OMAP SWMM – Updated

Global Dry Weather Flow Reduction in InfoSWMM and H2OMAP SWMM A cool tip to reduce the overall dry weather flow in InfoSWMM and H2OMAP SWMM without changing the mean dry weather flow is to do the following: 1.       Make a Reduction or Increase Flow Pattern in the Operations tab of the Attribute Browser (2), 2.      For example, if we want to […]

How to Compile SWMM 5 in Visual Studio 2010 Express

How to Compile SWMM 5 in Visual Studio 2010 Express Download the newest SWMM 5 code(Figure 1) from http://www.epa.gov/nrmrl/wswrd/wq/models/swmm/#Downloads and then make a new directory on your computer. We will call it c:\newSWMM5Code with a subdirectory C:\newSWMMCode\VC2005_DLL  in which the attached vcxproj file is placed.  […]

How to Use Trace Upstream, Domain Manager and Facility Manager in InfoSewer to Find the CE

Subject:   How to Use Trace Upstream, Domain Manager and Facility Manager in InfoSewer to Find the CE   InfoSewer does not have table of node continuity errors only an overall continuity error balance.  If you have a continuity error then you can use the process of divide and conquer […]

Wikipedia Traffic for the SWMM versus EPANET Articles

Subject:  Wikipedia Traffic for the SWMM versus EPANET Articles Wikipedia has one article for EPANET and three articles for SWMM 5 (two are redirected to the Stormwater Management Model Main Article).  The statistics for the last three years (data before 2007 is unavailable) show an average […]

Steps to take and rules for Cloning Datasets in InfoSWMM and InfoSewer

Note: Steps to take and rules for Cloning Datasets in InfoSWMM and InfoSewer Before cloning an active dataset, the user should switch to the Base Scenario.  This saves the active datasets and allows the user to clone the dataset with all edits.  This is a brief description of […]

How to Make an Internal Outfall into an External Outfall when you have more than one link connected to an Outfall in InfoSWMM

Subject:  How to Make an Internal Outfall into an External Outfall when you have more than one link connected to an Outfall Step 1:  Identify the Problem “ERROR 141: Outfall J-561 has more than 1 inlet link or an outlet link.” Means […]

WARNING 04: minimum elevation drop used for Conduit – What Does this Message Mean in SWMM 5?

Subject:  WARNING 04: minimum elevation drop used for Conduit  – What Does this Message Mean?   This message means that the elevation drop across the link  is less than the minimum allowable drop or (0.001 /3.048 meters)   Elevation1 = Link Offset Upstream + Upstream Node Invert   Elevation2 = Link Offset Downstream + Downstream Node […]

The relationship between the rainfall, total losses from the previous area, evaporation and infiltration only rate for SWMM 5

Subject:  The relationship between the rainfall, total losses from the previous area, evaporation and infiltration only rate.   The total loss from a subcatchment pervious area is the sum of the evaporation + infiltration loss.  Typically the evaporation rate is much less than the infiltration rate. SWMM 5 now has too options – evaporation during only dry periods or evaporation during both wet and dry periods.   Figure […]

How to use SWMM 5 DOS to make an Output Table in the RPT file

Subject:   How to use SWMM 5 DOS to make an Output Table in the RPT file You can make tables of the node,  link  and  Subcatchment output data in SWMM 5 if you use the DOS SWMM 5 program but not the Windows DLL.   Step 1 is to create the DOS batch file, Step 2 is to select the nodes, links and subcatchments, Step 3 is to run the […]

Hysteresis Effect in the Link Flow versus Depth Relationship in SWMM 5

Subject:  Hysteresis Effect in the Link Flow versus Depth Relationship in SWMM 5 You can often get a hysteresis effect for the Flow versus Depth relationship in SWMM 5 due to the five component St. Venant equation used to simulate the flows (http://swmm5.blogspot.com/2010/12/what-are-units-for-five-st-venant-flow.html) .  A hysteresis effect is having two or more flow values for the same depth value in the link. […]

Flow Units In InfoSWMM may be different then the Output Link Flow Units

Note:  Flow Units In InfoSWMM may be different then the Output Link Flow Units   The flows units selected in Run Manager determines the flow units of all incoming units including DWF, Inflow Time Series and other features in pump curves and other curves.  The output unit manager determines what you see when you […]

Export from WeatherUnderground using the CSV File Export Option to InfoSWMM

Note:  Export from WeatherUnderground using the CSV File Export Option to InfoSWMM    Weather Underground is a site that provides excellent local weather information in the form of graphs, tables and csv files. You can use the data very easily in InfoSWMM by copying from Excel to a […]