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Feedback from moving mesh

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Old   December 5, 2004, 10:43
Default Feedback from moving mesh
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Hi, Anyone know of the feedback problem you might expect in a moving mesh simulation? In particular, i would like to know how and what is causing it to occur. any help is appreciated.

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Old   December 5, 2004, 13:55
Default Re: Feedback from moving mesh
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What feedback problem ?
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Old   December 5, 2004, 14:11
Default Re: Feedback from moving mesh
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As in when mesh is moved through displacement of the boundary, the fluctuation in flow field leads to convergence problem.

My domain has a boundary modelled as a free surface. The free surface is defined using the local pressure field. The change in shape of the free surface subsequently leads to change in local flow field.

I came over the "feedback" term in another CFX forum. Not sure if this term can correctly describe the problem I have. Just thought i ask..

Again, thanks for replying..

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