Welcome to the RAS Solution Forums HEC-RAS Help 1D/2D Stability

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    Anonymous
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    Hi, I am currently working on the 1D/2D coupled model. Although the simulation can go through, the computation messages always show the 1D iterations error. Is there any possible solution for this?
    The average mesh size is 50m, the time step is set as 0.2s, and maximum number of iterations for 1D is 20. I can provide more details if needed. Thanks in advance.

    WSEL ERROR
    13MAY2018 05:42:18 Rideau River Up 8021.812 55.87 0.258
    13MAY2018 05:42:18 RRDown2 Down2 64.03788 48.80 0.290
    13MAY2018 05:42:19 Rideau River Up 111.0314 54.37 0.232
    13MAY2018 05:42:19 Rideau River Up 4411.672 55.99 0.261
    13MAY2018 05:42:19 Rideau River Up 70.26448 54.25 0.161
    13MAY2018 05:42:19 Rideau River Up 1986.536 54.16 0.429
    13MAY2018 05:42:19 RRDown2 Down2 54.36214 42.05 0.157
    13MAY2018 05:42:20 Rideau River Up 3961.401 55.79 0.173
    13MAY2018 05:42:20 RRDown2 Down2 439.9641 54.26 0.301
    13MAY2018 05:42:20 Rideau River Up 180.7392 54.15 0.208
    13MAY2018 05:42:20 Rideau River Up 1908.896 54.32 0.212
    13MAY2018 05:42:20 Rideau River Up 6698.234 55.84 0.128
    13MAY2018 05:42:21 Rideau River Up 7795.365 55.87 0.516
    13MAY2018 05:42:21 Rideau River Up 664.7446 54.23 0.161
    13MAY2018 05:42:21 Rideau River Up 7795.365 56.12 0.371
    13MAY2018 05:42:21 Rideau River Up 9225.099 55.96 0.148
    13MAY2018 05:42:21 Rideau River Up 3687.312 55.28 0.223
    13MAY2018 05:42:22 Rideau River Up 1487.956 54.32 0.299
    13MAY2018 05:42:22 Rideau River Up 4103.190 55.92 0.520
    13MAY2018 05:42:22 Rideau River Up 587.3984 54.23 0.281
    13MAY2018 05:42:22 Rideau River Up 8434.089 56.19 0.243

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