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June 18, 2004, 05:45
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Negative density
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Guest
Posts: n/a
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I've a problem in a instationary calculation with moving mesh. In particular I tryed to simulate an alternative motion for a piston by activating and disactivating cell layers. During the reactivation, near the finish of the calculation, yhe solver find negative density in a lot of cells in the cylinder mesh. I can't understand why the problem appear near the finish of the calculation. If the problem is in the reactivation process, I would have found the problem much many timesteps before!
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