Dynamic mesh, negative volume, help!
Hi, I'm using FLUENT v 13.
it's a 3D case with a model of a cylinder. the motion of the cylinder is in xy plane. I use smoothing and remeshing strategy.
it works well in 2d, but when I change to 3D, after some iterations, the skewness of the first layer mesh outside the rigid moving body get very high, and negative volume appear.
Can anybody help me?
Thanks a lot
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