Welcome to the RAS Solution Forums HEC-RAS Help unstability in model 1D/2D

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  • #6356
    KOFFI
    Participant

    Hello . I realize a 1D / 2D model I have difficulties with the stability of the model. After a simulation here are the errors that appear. thank you to answer me.

    Plan: ‘Simulation1’ (MODELE_1D_2D.p01)
    Simulation started at: 16Feb2017 04:41:50 PM
    Using 64 Bit Computation Engines

    Writing Geometry
    Surface: Mesh property tables are current.
    Completed Writing Geometry

    Geometric Preprocessor HEC-RAS 5.0.3 September 2016

    Finished Processing Geometry

    Writing Event Conditions
    Event Conditions Complete

    Performing Unsteady Flow Simulation HEC-RAS 5.0.3 September 2016

    **** ERROR: Solution Solver Failed ****

    Unstable for Initial Iteration at 31DEC1987 2400

    **** The Model Has One Or More Error(s) ****

    Unsteady Flow Simulation Terminated

    Writing Results to DSS
    Finished Writing Results to DSS

    Reading Data for Post Process
    Simulation went unstable at: 01Jan1988 00:01:00

    Running Post Processor HEC-RAS 5.0.3 September 2016

    Finished Post Processing

    Stored maps were not written because the simulation did not complete.

    Computations Summary

    Computation Task Time(hh:mm:ss)
    Completing Geometry 4
    Preprocessing Geometry(64) 2
    Unsteady Flow Computations(64) 1:42
    Writing to DSS(64) <1
    Post-Processing(64) 1
    Complete Process 1:53

    #10411
    cameron
    Participant

    Would need some more information to help.

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