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SWMM5 - Stormwater Management Model
SWMM 5, InfoSWMM, H20MAP SWMM, InfoSewer for Water Quality,Hydrology, Hydraulics
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Robert Dickinson added a page to the group SWMM4 Input Files
Historical SWMM 5 and SWMM 4 Engines and Examples
Subject: Historical SWMM 5 and SWMM 4 Engines and Examples
The web site has http://swmm5legacycode.ning.com/ historical SWMM 5 installs, SWMM 5 input file examples and SWMM 4 input files and engines. The SWMM 4 engines go back to SWMM 3.5…
Robert Dickinson commented on Robert Dickinson's group SWMM4 Input Files"Subject: Historical SWMM 5 and SWMM 4 Engines and Examples
The web site has http://swmm5legacycode.ning.com/ historical SWMM 5 installs, SWMM 5 input file examples and SWMM 4 input files and engines. The SWMM…"
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SWMM5.NET
15 GPM
1985
1D Components in InfoSWMM 2D
3 Types of Manholes in SWMM 5 and InfoSWMM
3 Types of Subcatchment Flow in SWMM 5
A Basic InfoSewer Wet Well
A feedback loop involves four distinct stages
A rise in Pipe Inverts Across a SWMM 5 Node
A…
Robert Dickinson commented on Robert Dickinson's group Stream of Information"Udaipur, India
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Robert Dickinson commented on Robert Dickinson's group Weather"Man-made Pollution Shifting Tropics and Sub-Tropics Poleward
"If a poleward displacement of the mid-latitude storm tracks also occurs, this will shift mid-latitude precipitation poleward, impacting regional agriculture, economy, and…"
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In this new RSA Animate, Manuel Lima, senior UX design lead at Microsoft Bing, explores the power of network visualisation to help navigate our complex moder...
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Epaswmm5.exe
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Robert Dickinson replied to Robert Dickinson's discussion How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?"Subject: Link Iterations in the SWMM 5 Dynamic Wave Solution
Each of the links in the SWMM 5 network can use up to 8 iterations to reach convergence during a time step in the dynamic wave solution of SWMM 5. The rules…"
Robert Dickinson left a comment for wu ze jian"Hi, I added this discussion http://swmm2000.com/forum/topics/how-is-the-st-venant-equation-solved-for-in-the-dynamic-wave-solu"
Robert Dickinson posted a discussionHow is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?
Subject: How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5? An explanation of the four St. Venant Terms in SWMM 5 and how they change for Gravity Mains and Force Mains. The HGL is the water surface elevation in the upstream and downstream nodes of the link. The HGL for a full link goes from the pipe crown elevation up to the rim elevation of the node + the surcharge depth of the node. The four terms are: dq2 = Time Step * Awtd * (Head Downstream – Head Upstream)…See More
Calibrating total width of catchment using SWMM5
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Hello,
I am not familiar on using SWMM for quantity and quality modeling. i need some helps here.
I have a problem on calibrating the total width of catchment in SWMM quantity modeling. Figure shown below is my studied catchment. the surface runoff is flow from right to left. How can i calculate the total width of catchment? and how to calibrate SWMM quantity modeling on its total width?
Hopefully i can get some help from you all. Thank you.
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I am not familiar on using SWMM for quantity and quality modeling. i need some helps here.
I have a problem on calibrating the total width of catchment in SWMM quantity modeling. Figure shown below is my studied catchment. the surface runoff is flow from right to left. How can i calculate the total width of catchment? and how to calibrate SWMM quantity modeling on its total width?
Hopefully i can get some help from you all. Thank you.
Comment
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Comment by Robert Dickinson on August 15, 2010 at 11:10am -
You should still adjust the width individually for each subcatchment but compare the peak flows for the combined flows to your monitored data. Unless you want to model S1, S2 and S3 together then you are best off estimating the width for each subcatchment.
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Comment by Chow Ming Fai on August 15, 2010 at 10:45am -
Thank you for your help. However, the flow measurement was only taken at the outlet of the whole catchment (Out 1). if i want to calibrate the runoff quantity, how can i obtain the width of the whole catchment? Am i combine the total width of subcatchment S1, S2 and S3? Thank you for your comment.
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Comment by Robert Dickinson on August 14, 2010 at 11:41am
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Originally, when SWMM was developed the width parameter was the collection length of the subcatchment. For example, it would be the gutter length on a street going to an inlet. In your case one easy way to estimate the Width for the subcatchment going to inlet S3 would be
Width = Area of Subcatchment in Hectares / Length of Overland Path to Inlet S3 in Meters
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