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  1. #1
    Senior Member
    Join Date
    Feb 2013
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    125

    Initial timestep

    I have been finding that ICM models can be very sensitive to initial timestep. Some will run fine with 60 seconds, others object to anything more than 10 seconds, and even so will fail on some events, which have to be re-run with a different timestep e.g. 6 seconds. Usually they fail due to unstable over bank flow, and I wish I could predict better what would work, or have the time to go through every river bank in minute detail to find out what's the matter! It's not always the same place in a given model that fails. What has anyone else found?
    Last edited by Kristian Ravnkilde; February 28, 2013 at 12:32 AM.

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