"At the Summit of Olympus Mons
Credit: G. Neukum (FU Berlin) et al., DLR, ESA
From martian orbit, the Mars Express cameras looked down on the largest volcano in the solar system. The result was this stunningly detailed overhead view of the…"
SWMM5 - Stormwater Management Model
SWMM 5, InfoSWMM, H20MAP SWMM, InfoSewer for Water Quality,Hydrology, Hydraulics
Top Content
Latest Activity
- Top News
- Everything
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
Robert Dickinson added a page to the group Hydraulics
Force Main Friction Loss in InfoSWMM and the Transition from Partial to Full Flow
Subject: Force Main Friction Loss in InfoSWMM and the Transition from Partial to Full Flow
You can model Force Main friction loss in InfoSWMM using either Darcy Weisbach or Hazen Williams as the full pipe friction loss method (see Figure 1 for the…
Robert Dickinson's blog post was featuredSWMM 5 Precipitation Options
Subject: SWMM 5 Precipitation Options You can have design storms, monitored storms of any length of the time from minutes to centuries, use intensity, volume or cumulative precipitation, use both rainfall and snowfall in the same rain gage depending on temperature, use both time series or external files for the rain gage and have unlimited rain gages with the limitation of one rain gage per subcatchment. …See More
Robert Dickinson posted a blog postSWMM 5 Precipitation Options
Subject: SWMM 5 Precipitation Options You can have design storms, monitored storms of any length of the time from minutes to centuries, use intensity, volume or cumulative precipitation, use both rainfall and snowfall in the same rain gage depending on temperature, use both time series or external files for the rain gage and have unlimited rain gages with the limitation of one rain gage per subcatchment. …See More
Robert Dickinson commented on Robert Dickinson's group Stream of Information"Pacheena Indian Reserve, British Columbia, Canada
May. 25, 2012
"
Robert Dickinson commented on Robert Dickinson's group Stream of Information"All the Water on Europa Illustration Credit & Copyright: Kevin Hand (JPL/Caltech), Jack Cook (Woods Hole Oceanographic Institution), Howard Perlman (USGS)
Explanation: How much of Jupiter's moon…"
Robert Dickinson commented on Robert Dickinson's group Water Quality"URBAN STORMWATER QUANTITY/QUALITY MODELING USING THE SCS METHOD AND EMPIRICAL EQUATIONS†
http://onlinelibrary.wiley.com/doi/10.1111/j.1752-1688.1997.tb04093.x/abstract
May 24, 2012
Wiley Online Library will be disrupted on 26 May from…"
Robert Dickinson commented on Robert Dickinson's group Water Quality"Hi MeHa, Here is one good source of data, I also have the SWMM 5 models for the USGS areas.
http://www.1000friendsofflorida.org/pubs/stmarksgreen/apend4.asp
http://sofia.usgs.gov/publications/ofr/78-324/ofr-78-324.pdf
"
MeHa commented on Robert Dickinson's group Water Quality"I want to model WQ of sewers. Can any body provide me a network with real measured calibration files? "
MeHa posted a status"Hello, When designing a sewer system, we consider the Node Flooding and Conduit surcharge in the status report. Is there any guideline which"
Quah Soon Tong left a comment for Esther Bergareche Auricenea"Hi Esther, I am not sure you are the same Esther that was at the United World College in South Wales with me. I am Quah Soon Tong from Singapore. I noticed you are also an engineer. I did Civil Engineering at Cambridge University, but practised as…"
Robert Dickinson commented on Robert Dickinson's group Stream of Information"River Canyon
May. 23, 2012
"
Robert Dickinson commented on Robert Dickinson's group Stream of Information"Litla Dimun, Faroe Islands
May. 23, 2012
"
- Blog Posts
- Discussions (10)
- Groups
- Photos
- Photo Albums
- Videos
Fateme Fallah's Discussions
effect of BMPs on Q peak
Started this discussion. Last reply by Fateme Fallah Dec 1, 2011. 2 Replies 0 Likes
Hi,I have modeled porous pavement with regard to 2 scenarios. In the first scenario I examined the effect of increase the flow (Q peak) on the BMP efficiency. The results showed that the efficiency…Continue
modeling reservoir
Started this discussion. Last reply by Fateme Fallah Nov 29, 2011. 5 Replies 0 Likes
Hi,I have modeled 4 reservoirs for the purpose of controlling peak flow. The total depth of flow in reservoirs decrease in approximately 24 hours. I expected that after modeling reservoir, lag time…Continue
Uncertainty Analysis
Started this discussion. Last reply by fang Mar 17. 6 Replies 0 Likes
Hello everybodyI want to examine uncertainty of rainfall duration with the monte carlo method. So I should link SWMM with MATLAB program and run the program many times (here 1000 times). In each…Continue
link SWMM with Matlab
Started this discussion. Last reply by Robert Dickinson Jun 8, 2011. 1 Reply 0 Likes
Hi;I'm trying to do a simulation with SWMM5 using a program in Matlab. How can I open my SWMM model in Matlab?ThanksContinue
Gifts Received
Fateme Fallah has not received any gifts yet
Fateme Fallah's Page
Latest Activity
fang replied to Fateme Fallah's discussion Uncertainty Analysis
"thanks for your reply. I am planning to call swmm in matlab. Could you please tell me how to change a variable during running swmm in matlab environment?thanks"
Robert Dickinson replied to Fateme Fallah's discussion Uncertainty Analysis
"It is not hard to add the ability to change a variable during the run in SWMM 5. You need to alter the C and Delphi code but it is only a few lines of code in the engine and Delphi. I will add a blog with one example so you can see how…"
fang replied to Fateme Fallah's discussion Uncertainty Analysis
"so we can play swmm only with input and output files，right? Can we use a function to reset a parameter value during running swmm like epanet toolkit doing?thanks"
Fateme Fallah replied to Fateme Fallah's discussion Uncertainty Analysis
"Dear Lionel,
This matter is explained in Appendix D of SWMM manual under the title of “Command line SWMM”. So in MATLAB you can use below format under DOS window:
"The address of place that SWMM is there" input…"
Lionel replied to Fateme Fallah's discussion Uncertainty Analysis
"Hi Fateme Fallah,
I am doing something similar but in my case I am varying the infiltration factor. I am not very good with Matlab so require a bit of help on the coding. I would like to check if you have been successful in your attempt to…"
Fateme Fallah replied to Fateme Fallah's discussion effect of BMPs on Q peak
"I mean:
Efficiency =(Q outfall (before using BMP)- Q outfall (after using BMP))/ Q outfall (before using BMP)
And also
efficiency=(Volume outfall (before using BMP)- Volume outfall (after using BMP))/ Volume outfall (before using BMP)"
Robert Dickinson replied to Fateme Fallah's discussion effect of BMPs on Q peak
"Hi, How are you defining efficiency - the BMP volume removal over the total inflow to the BMP?"
Fateme Fallah posted a discussion
effect of BMPs on Q peak
Hi,I have modeled porous pavement with regard to 2 scenarios. In the first scenario I examined the effect of increase the flow (Q peak) on the BMP efficiency. The results showed that the efficiency was decreased when flow increased. That’s ok. But in the second scenario I examined the effect of increase the flow (Q peak) because of change in hyetograph. In this scenario return period & total depth of precipitation is constant. Results showed that when flow (Q peak) increased, BMP efficiency…See More
Fateme Fallah replied to Fateme Fallah's discussion modeling reservoir
"All of my storage nods have this problem and so when I have porous pavement. Thanks again"
Robert Dickinson replied to Fateme Fallah's discussion modeling reservoir
"Thanks, I have your models and was able to run them. Query: Does your question apply to all of your storage nodes or one in particular?
"
Fateme Fallah replied to Fateme Fallah's discussion modeling reservoir
"I attached the inp files again in a new discussion.
Thanks"
Robert Dickinson replied to Fateme Fallah's discussion modeling reservoir
"Hi, Can you attach the inp file? I am having trouble opening the rar file."
Fateme Fallah posted a discussion
modeling reservoir
Hi,I have modeled 4 reservoirs for the purpose of controlling peak flow. The total depth of flow in reservoirs decrease in approximately 24 hours. I expected that after modeling reservoir, lag time happen for the time to peak. But unfortunately the outlet hydrograph didn’t show this matter. Is it correct? And what about the use of BMPs? I mean that should I see the lag time in the outfall hydrograph after the use of BMPs? If yes, so why didn’t it happen?Attached are the input files and the…See More
Fateme Fallah posted a discussion
Uncertainty Analysis
Hello everybodyI want to examine uncertainty of rainfall duration with the monte carlo method. So I should link SWMM with MATLAB program and run the program many times (here 1000 times). In each iteration I should change the duration of rainfall and so the temporal pattern of rainfall will be changed. Now I want to know is it possible that I change rainfall timeseries for a gage in each iteration? At this stage I have prepared a code that generate different types of rainfall timeseries. How…See More
Robert Dickinson replied to Fateme Fallah's discussion link SWMM with Matlab
"SWMM 5 makes a binary and text output file using either a standalone DOS program (SWMM5.EXE) or a GUI and DLL composite program (EPASWMM5.EXE and SWMM5.DLL). You should use Matlab with the DOS EXE and extra the output using the DOS…"
Profile Information
- Relationship Status:
- Single
- Preferred Language
- English (British)
- One Hundred Years from now the year will be?
- 2111
© 2012 Created by Robert Dickinson.
Powered by
