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Free Surface , errors (Please Help ASAP)

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Old   March 30, 2016, 09:32
Default Free Surface , errors (Please Help ASAP)
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hossein
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Hi

I am modeling a free surface problem. in middle of simulation (after 2700 steps) it has been stopped and the error is:

| ERROR #004100018 has occurred in subroutine FINMES. | | Message: | | Fatal overflow in linear solver.

as previous guides, I reduced the timestep to 1e-4 and the error occurred.

I reduced timestep more up to 1e-5, this time new error occured:

Error #001100279 has occurred in subroutine ErrAction. Message :Floating point exception :Over flow


Why this is happening in middle of simulation?
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