TELEMAC-MASCARET Forum: SOLUTION X=0 BECAUSE L2-NORM OF B VERY SMALL (1/1)

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TOPIC: SOLUTION X=0 BECAUSE L2-NORM OF B VERY SMALL

SOLUTION X=0 BECAUSE L2-NORM OF B VERY SMALL 7 years 2 weeks ago #30759

TheGunslinger	Hello everyone, my test case is very simple, a rectangular closed basin (22m x 0.6m) stressed by a constant wind velocity (6.8 m/s). The simulation ends successfully, but the program says "SOLUTION X=0 BECAUSE L2-NORM OF B VERY SMALL". When I plot the result in Bluekenue, I see that the velocity has no value. May anyone help me? Thanks a lot Attachments: steering_ML.cas (3KB)
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SOLUTION X=0 BECAUSE L2-NORM OF B VERY SMALL 7 years 2 weeks ago #30763

SDAC

It's likely that a value wasn't initialised, so you'd have to find where the NaN occurs if so. You can do that using the compiler (Intel compiler : -debug all -traceback -ftrapuv).

If you have shallow areas it might also be related to mesh crushing, so check your tidal flats option.

Jean-Michel wrote a reply to a topic on this error a while ago, which is where I learnt the above. If you search for it, it might have more info on how to find the cause.

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