Day: August 8, 2013

How is the Orifice Setting Used in SWMM 5 RTC Rules?

Subject:  How is the Orifice Setting Used in SWMM 5 RTC Rules?

 

The Real Time Control Rule for Orifice Setting can be a function of a Setting constant, Setting from a Curve, Setting from a PID controller and a Setting from a Time Series (Figure 1).    The Setting affects Read the rest

Low Impact Development Options in H2OMAP SWMM and InfoSWMM

Subject:  Low Impact Development Options in H2OMAP SWMM and InfoSWMM

 

The five options are:

 

1.       Rain Barrel

2.      Bio Retention Cell

3.      Infiltration Trench

4.      Vegetative Swale

5.      Porous Pavement

 

and be entered as controls in the Hydrology Section of the Operations Browser of H2OMAP SWMM or InfoSWMM (Figure 1)Read the rest

Rules for NRSCS Unit Hydrographs in InfoSWMM and H2OMap SWMM

Subject:  Rules for NRSCS Unit Hydrographs in InfoSWMM and H2OMap SWMM

 

Rules or Guidelines for NRSCS Unit Hydrographs if used as the Hydrology Option in InfoSWMM and H2OMAP SWMM:

1.       The Unit Hydrograph CN comes from the Subcatchment Table and the NRCS_CN Column

2.      Time of Concentration is from the Read the rest

How to Export all of your Data to a Shapefile Using InfoSWMM

Subject:  How to Export all of your Data to a Shapefile Using InfoSWMM

 

You can do this easily by using three steps which are shown in Figure 1, Figure 2 and Figure 3.

 

Figure 1.  Export Manager Tool

 

Figure 2.  Link and Node Export Options

Figure 3. Parameter options for Read the rest

How to use the Flow Splitter in InfoSewer for Dendritic Networks

Subject:  How to use the Flow Splitter in InfoSewer for Dendritic Networks

 

InfoSewer, which is an extension in Arc Map, does need to have slit split defined where gravity mains merge together to determine the amount of flow in each of the downstream conduits (Figure 1).   The options for Read the rest

How to Use Two Control Curves in SWMM 5 to Simulate a Head Difference Rule

Subject:  How to Use Two Control Curves in SWMM 5 to Simulate a Head Difference Rule

 

The SWMM 5 control rules for Real Time Control (RTC) do not allow the rule to be governed by the head across the orifice but does allow rules based on the depth, head and

Read the rest

Advanced Labeling in InfoSWMM or H2OMAP SWMM to show MM or IN on a HGL Plot

Advanced Labeling in InfoSWMM or H2OMAP SWMM to show MM or IN on a HGL Plot

 

Here is how to get the maximum depth shown in millimeters or inches on a HGL Plot in InfoSWMM or H2OMAP SWMM– use the OTHER LINK Dimensions option.  You need to run the Read the rest

Continuous Simulation using SWMM 5 LID and Groundwater Features in a Linked 1D/2D Network using InfoSWMM 2D for a 50 Year Period

Continuous Simulation using SWMM 5 LID and Groundwater Features in a Linked 1D/2D Network using InfoSWMM 2D for a 50 Year Period

 

A poster at the recent ECI conference on the Past, Present and Future of Watershed modeling.


via Blogger http://www.swmm5.net/2013/08/continuous-simulation-using-swmm-5-lid.htmlRead the rest

How to Create an InfoSWMM model from CSV Files

How to Create an InfoSWMM model from CSV Files

 

An InfoSWMM model can be newly created from a CSV file but it helps to have a background map or shapefile to initialize the Arc Map project.  BEFORE initializing yourInfoSWMM map Add a data layer using the Arc Map command Read the rest

InfoSewer Minimum Travel Time Sensitivity

InfoSewer Minimum Travel Time Sensitivity

 

The three Run manager parameters, Maximum Number of Segments, Minimum Travel Distance and the Minimum Travel Time in InfoSewer and H2OMAP Sewer affect the shape and flow attenuation of the flow in a link.  The effect of decreasing the Minimum Travel Time is to reduce Read the rest

How to Create an InfoSWMM model from CSV Files, Alternate Method

How to Create an InfoSWMM model from CSV FilesAlternate Method

 

An InfoSWMM model can be newly created from a CSV file but it helps to have an idea of the maximum extents before you initialize the Arc Map project.  Use the ArcGIS default and Edit the extents of Read the rest

InfoSewer By Discharge Control for a PUMP

InfoSewer By Discharge Control for a PUMP
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 Discharge control the 
Read the rest

SWMM 4 and SWMM 5 St. Venant Solutions Contrasted

SWMM 4 and SWMM 5 StVenant Solutions Contrasted

 

1. Compute at time t+delta t the values of dQ/dt for the Links and dH/dt for the Nodes from the properties at time t

2 Iterate at least 2 times until either all nodes and links are converged or a Read the rest

InfoSewer Inflow Control for a PUMP

InfoSewer Inflow Control for a PUMP

 

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 Read the rest

InfoSewer Maximum Number of Segments Sensitivity

InfoSewer Maximum Number of Segments Sensitivity

 

The three Run manager parameters, Maximum Number of Segments, Minimum Travel Distance and the Minimum Travel Distance in InfoSewer and H2OMAP Sewer affect the shape and flow attenuation of the flow in a link.  The effect of decreasing the Minimum Travel Distance is Read the rest

Singapore – Catching Every Drop of Rain

Singapore – Catching Every Drop of Rain

 

The source of the map of the rivers of Singapore is the Singapore PUB

As a small island that doesn't have natural aquifers and lakes and with little land to collect rainwater, Singapore needs to maximize whatever it can harvest.

Currently, Singapore uses Read the rest

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