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Thread: Swales - Convergence problems

  1. #1

    Join Date
    Nov 2014
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    1

    Swales - Convergence problems

    I have a network with a large amount of swale links (rivers) in it which always generates the 'convergence least achieved at...' message in the SIM log which it never completes. I have reduced timesteps to 1s with no joy.

    The noticed the swale link cross-sections are variable (e.g a 5m wide swale 0.5m deep may flow to a 3m wide 1m depth) and some of the feed into detention basins (which may surcharge back into the swales).

    Is this geometry & reverse flow the likely source of the issues?

    Cheers

    Cam
    Last edited by Cameron; November 17, 2014 at 08:03 PM.

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