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Showing posts from August, 2014

Area Scaling Factor in #INFOSWMM and #H20MAPSWMM

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Note: Area Scaling Factor in #INFOSWMM and #H20MAPSWMM  is needed if you want to update the DB from the Map after drawing a Subcatchment. The Auto Area Calculation Flag has to be turned on for this to work. Why did I write this blog? The USA conversion is really hard to remember!





2.295684113865932e-5  Area Scaling Factor for USA Units 0.0001                                Area Scaling Factor for SI Units

New work from Olafur Eliasson: he installed a huge riverbed in a Danish museum

New work from Olafur Eliasson: he installed a huge riverbed in a Danish museum http://t.co/dDKPxZSTDspic.twitter.com/H2gdBYKh6U
— Robert E Dickinson (@RDickinson) August 24, 2014

Tweets about InfoWorks ICM from RDICKINSON

What is this blog post about?  It is a visual widget to my tweets on  InfoWorks ICM from the twitter person RDICKINSON  Why do I use Twitter?  I first started using twitter in 2008 thanks to our daughter @boonsri and my love of timelines.

Tweets about InfoSWMM from RDICKINSON

What is this blog post about?  It is a visual widget to my tweets on InfoSWMM from the twitter person RDICKINSON  Why do I use Twitter?  I first started using twitter in 2008 thanks to our daughter @boonsri and my love of timelines.  My goal is to reach 100,000 tweets if I last long enough and Twitter lasts enough years.  I would have over 100,000 tweets now if I had started in 1980 and tweets were possible in the  80's

Questions after a Main Break | Webinar on Smart Asset Planning

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Questions after a Main Break | Webinar on Smart Asset Planning
Water main breaks are prevalent in all cities.  As engineers and planners, we do everything we can to avoid them and mitigate damages when they occur.  Communicating those plans and educating the general public is another story.  Having a clearly defined and defensible rehabilitation plan is the foundation for better education of stakeholders.  They want to know:

Why did this water main fail?  What was the likelihood of this water main to fail?  Was there an assessment (financial, environment, and social) on this pipe failing?  Was this pipeline planned to be repaired/upgraded in the near future?

Take a look at a sampling of news stories in the last week regarding main breaks.  Is your utility prepared?


Join Innovyze for a free webinar on Wednesday, September 17th, 2014 for a technology update for risk-driven asset planning solutions, and will discuss how utilities are utilizing these toolsets t…

Oscillations in SWMM 5 and InfoSWMM

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I made this example to show how oscillations occur for legitimate reasons and the best ways to test the oscillations in InfoSWMM and SWMM 5:
Oscillations due to downstream obstructions, downstream mixed solutions and downstream boundary conditions: In this case the oscillation in some links is due to the culvert comparison which limits the flow based on the inlet equation.  You can see the flow changes if you turn on show control actions in the run manager.  The program will then show the changes in the HTML report file.  The flow oscillation is due to the water being stored at the upstream node of the culvert followed by the excess flow going into the culvert.  
How to check  the validity of the solution:  Use a Map Display of the Link Result Variable Link Volume.  If you do a map display of the link total volume you will see that the total volume passing through each link is in balance.  You were using a 30 minute report time step, you can see and understand the oscillations better if…