"Brixham, England
May. 29, 2012
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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 commented on Robert Dickinson's group Stream of Information"by jasonkillinger. Browse more data visualizations.
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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…"
Robert Dickinson added a page to the group Blog Links
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
May. 28, 2012
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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…"
Robert Dickinson commented on Robert Dickinson's group Weather"Poor neighborhoods have fewer trees, as these jarring satellite photos reveal.: http://www.treehugger.com/economics/how-spot-income-inequality-space-look-trees.html"
Robert Dickinson commented on Robert Dickinson's group Weather"
Climate Change is Frying Our Cities
Rising temperatures are set triple the heat-related deaths in cities across the U.S., a new report finds. Cities need to fight back."
Robert Dickinson posted a videoRSA Animate - The Power of Networks
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...
Robert Dickinson commented on Robert Dickinson's group ExtraVariables"Update of May, 20012
Epaswmm5.exe
swmm5.dll"
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
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bahareh's Discussions
LID Quality Performance
Started this discussion. Last reply by Robert Dickinson Apr 13, 2011. 8 Replies 0 Likes
I have found the following notation in SWMM manual: "Although some LID practices can also provide significant pollutant reduction benefits, at this time SWMM only models their hydrologic performance.…Continue
loss coefficient
Started this discussion. Last reply by Mehdi Feb 13, 2011. 1 Reply 0 Likes
hiwhat is the suitable loss coefficient for polyethylene pipe 3-5 meter below ground surface?thanksContinue
difference in two versions
Started this discussion. Last reply by Robert Dickinson Feb 8, 2011. 1 Reply 0 Likes
I have face with a strange problem in SWMM. I constructed two models with exactly the same properties. one with SWMM 5.0.13 and the othe with SWMM 5.0.021but max/ full depth in conduit are not the…Continue
Tags: versions, two, in, difference
diameter of manhole
Started this discussion. Last reply by Matti Heikkinen Feb 26, 2011. 3 Replies 0 Likes
HiI Want to model flow in Manhole. This is an Urban Drainage System with 1.2 m pipe connencting 2m manhole. I want to know how I can model the flow profie in manhole using SWMM? How can I determine…Continue
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Robert Dickinson replied to bahareh's discussion LID Quality Performance
"An example SWALE LID model with TN and a BMP "
Robert Dickinson replied to bahareh's discussion LID Quality Performance
"Hi Michele,
You can easily use the treatment functions at BMP's to treatment TKN and Nitrogen species so if you want to link the treatment to BMP inside of an LID, I think that would work. It would help if i made an example for you."
MichelleM replied to bahareh's discussion LID Quality Performance
"HI:
I am looking for some help with modeling the breakdown of TKN and/or NO3- using SWMM5. Has anyone done this, or something similar before? If so, your input would be appreciated.
Thanks- Michelle"
MichelleM replied to bahareh's discussion LID Quality Performance
"
That would be fantastic. I am very new to SWMM5, but attempting to model the breakdown of TKN and NO3- in a bioretention cell. Thank you so much for your help.
I have a very generic model at this stage which I have derived from Lucas,…"
Robert Dickinson replied to bahareh's discussion LID Quality Performance
"Hi Michele, Let me make an example of TN modeling with TN reduction in SWMM 5."
MichelleM replied to bahareh's discussion LID Quality Performance
"Bahareh:
I am wondering the same thing; only I am trying to model nitrogen reduction using SWMM5. I have heard it is possible to model this, but I am stumped. Did you have any luck finding the answer to your question?"
bahareh replied to bahareh's discussion LID Quality Performance
"I mean:
Does SWMM model subcatchment water Quality improvment when we added an LID?
I have added an LID, but the basin's TSS (mg/l) increased?!
the TSS (kg) in subcatchments was decreased?
Is this reasonable?"
Robert Dickinson replied to bahareh's discussion LID Quality Performance
"Hi, You can use the treatment equations for water quality constituents in a LID. I will show you an example."
bahareh posted a discussion
LID Quality Performance
I have found the following notation in SWMM manual: "Although some LID practices can also provide significant pollutant reduction benefits, at this time SWMM only models their hydrologic performance. Does it means that, we can not use SWMM to evaluate LID Quality Performance ?See More
Matti Heikkinen replied to bahareh's discussion diameter of manhole
"Hi, I would like to know, how SWMM calculates the energy loss and water level drop at the entrance of the conduit, when water flows from the manhole to the pipe. Is the diameter of the manhole (i.e the velocity in the manhole) taken into…"
bahareh's discussion was featured
loss coefficient
hiwhat is the suitable loss coefficient for polyethylene pipe 3-5 meter below ground surface?thanksSee More
Mehdi replied to bahareh's discussion loss coefficient
"dear bahareh
nice to see you here
Please inform what do you mean about loss coefficient? Your problem is to determine the manning roughness, or minor losses i.e. entrance loss coefficient?
In this issue, you can see FHWA…"
bahareh posted a discussion
loss coefficient
hiwhat is the suitable loss coefficient for polyethylene pipe 3-5 meter below ground surface?thanksSee More
Robert Dickinson replied to bahareh's discussion difference in two versions
"Hi, I have not been able to use your files - can you upload the files again as simple text or inp files? Thanks."
bahareh's discussion was featured
difference in two versions
I have face with a strange problem in SWMM. I constructed two models with exactly the same properties. one with SWMM 5.0.13 and the othe with SWMM 5.0.021but max/ full depth in conduit are not the same. I have attached these two file.But I do not know what is the difference between these two file.I will be thankful if you help me regarding this problem. thanksSee More
bahareh replied to bahareh's discussion diameter of manhole
"I did not understand whether it is possible to model manhole with various size using SWMM or not?should we model manhole with junction elements?
I want to know how can we model a manhole with drop structure betwen them? I want to see…"
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