• Problem using SewerGems Explicit SWWM Solver - culvert inlet coefficient

    Vitor  Chaves
    Vitor Chaves
    Hello I am trying to run a hydraulic model with explicit calculation solver However, the model does not run because of the following error "culvert inlet coefficient assigned to this conduit has a swwm culvert code which only applies to culvert…
    • 2 months ago
    • OpenFlows | Water Infrastructure
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  • Highest Continuity error in POS

    Nishadi
    Nishadi
    Hello, My drainage network simulated in Sewergems Explicit solver is consist with Ponds and POS. I'm getting not converging %, more than 5%. It gives unstable flow results. When I check the report summary, it shows higher continuity error in POS. Is…
    • 3 months ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • Results instability- Explicit Solver

    Nishadi
    Nishadi
    Hello, I'm simulating a storm network in sewergems platform. My network is connecting with a pond and the variation of HGL of the pond and the U/S node of the incoming channel is shown below. I'm using explicit solver, with 6 sec routing time step…
    • Answered
    • 4 months ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • Explicit Solver limitations

    Nishadi
    Nishadi
    Hello, I am simulating a stormwater network (in sewergems) where I have channels, conduits, manholes, Ponds (3 nos), POS, Pumps. I can not simulate this in Implicit solver (as it takes hours and giving unstable results). When I simulate in Explicit…
    • Answered
    • 4 months ago
    • OpenFlows | Water Infrastructure
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  • Rectify issue in Explicit Solver

    Nishadi
    Nishadi
    Hello, I'm simulating a drainage network in SewerGEMS. The network consist with open channels, closed conduits, pond, pump, POS(no control structure). when I simulate the model in Explicit and implicit solvers, I'm getting two different profiles as…
    • 6 months ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • SWMM Control

    Nishadi
    Nishadi
    Hello, I'm simulating a stormwater network where I have a pond. in the pond outlet channel I need to introduce a stop control structure and assign a orifice gate where I can open/close it with SWWM control set using pond water level. My issue is …
    • 7 months ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • Simulating in Explicit Solver

    Nishadi
    Nishadi
    Hello, I'm simulating my model in explicit solver and I have set the SWMM output increment to 0.1 hr. Then when I go for profile simulation, always my profile start with 0.1 hr. Is it possible to change it to Zero? BR Nishadi
    • 9 months ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • Depth (Surcharged) of Manholes using Explicit SWMM Solver

    Maria Blake
    Maria Blake
    Using SewerGEMS Connect Edition 10.02.04.53 For manholes, I am wondering how the software calculates the area/volume of water that is stored over the rim elevation corresponding to the surcharge depth. For example, below is a manhole that has…
    • over 1 year ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • Implicit solver for Open channel network

    Nishadi
    Nishadi
    Hello, I'm simulating a stormwater model in sewergems platform. the network is simulating as open channel flow. further, network is bit complex with several tributaries with several sections (unlined trapezoidal, RCU rectangular drains, box culvert…
    • Answered
    • over 1 year ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • Zero overflow volume in manholes that show True in the "is ever overflowing"?

    Ana Maria Jaramillo Sarmiento
    Ana Maria Jaramillo Sarmiento
    SewerGEMS: Why I have zero overflow volume (Hydraulic Reviewer manhole table) in manholes that show "True" in the "Is ever overflowing" field? I'm using the explicit SWMM solver and I don't have bolted covers. Thank you very much.
    • over 1 year ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • SewerGEMS High Continuity Error during specific storm that causes flooding of catch basins

    Joshua Hesting
    Joshua Hesting
    Hello, I have a SewerGEMS model set up to review 2, 10, 100, and 2500 year storm scenario's. For this model, the explicit solver achieved much better convergence and continuity error results for the 2, 10, and 100 year storms. However, I am seeing very…
    • over 2 years ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • SewerGEMS Explicit Solver Time Step Critical Elements

    Joshua Hesting
    Joshua Hesting
    Can someone explain to me what the "Time Step Critical Elements" are when running a SewerGEMS Model with the explicit solver? After a model run when looking through the summary report, there is a section titled "Time Step Critical Elements". My model…
    • Answered
    • over 2 years ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • SewerGEMS Explicit Solver "The crown of the link adjacent to the Start Node is above the top of the node"

    Joshua Hesting
    Joshua Hesting
    I cannot for the life of me get this warning to disappear from my model. If someone could take a look at the node that is causing an error that would be great. The model contains a double barrel arch CMP pipe as an outlet structure for a pond. The pond…
    • over 2 years ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • why there's implicit and explicit solver?

    nei lounis
    nei lounis
    hi guys hope you're doing fine am just curious about : why there is an explicit and implicit solver? isn't the implicit is the best one what ever ? why modified rational method wont run on explicit ? and work on implicit and thank you coardially…
    • over 4 years ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • RE: SURCHARGE NETWORK

    MPachlhofer
    MPachlhofer
    Daniel, We have a wiki article that explains the difference between the StormCAD solver (GVF Rational engine) and the CivilStorm solver (Implicit or SWMM dynamic engine) that will help explain when to use each solver for the results that you're looking…
    • over 7 years ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
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