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Ana Maria Jaramillo Sarmiento

Ana Maria Jaramillo Sarmiento

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  • RE: Zero overflow volume in manholes that show True in the "is ever overflowing"?

    Sushma Choure
    Sushma Choure
    Hello Ana, The Preissmann slot method is used for simulating pressure or surcharged flows for gravity conduits, by adapting the conceptualization of pressurized flow to fit a free surface model. The slot extends vertically from pipe crown to infinity…
    • over 1 year ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • RE: Zero overflow volume in manholes that show True in the "is ever overflowing"?

    Jesse Dringoli
    Jesse Dringoli
    I tested this with the Routing Step set to 1.0 seconds and was able to observe the spike in HGL that is causing the momentary overflow: I see that with the increased routing step, the flow continuity error increases though. It appears that this momentary…
    • over 1 year ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • RE: Zero overflow volume in manholes that show True in the "is ever overflowing"?

    Jesse Dringoli
    Jesse Dringoli
    Ana Maria, Try the following calculation options: Routing step: 1.0 seconds SWMM Output Increment: 0.5 minutes Surcharge Method: Slot Max trials per timestep: 20 With this, the %non-convergence is 3%, the Flow Continuity Error is 0.4%…
    • over 1 year ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
  • RE: Zero overflow volume in manholes that show True in the "is ever overflowing"?

    Jesse Dringoli
    Jesse Dringoli
    I was able to further improve the results by reducing the SWMM Output Increment to 0.1 minutes. With this, I was able to view positive values in the overflow graph for all elements with "is overflowing ever?" set to True. I have updated this article…
    • over 1 year ago
    • OpenFlows | Water Infrastructure
    • OpenFlows | Water Infrastructure Forum
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