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Old   October 22, 2006, 11:22
Default Structure or unstructured mesh
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when trying to simulate the flow around a blade of a water turbine, what do you thing would be more suitable, a structured or an unstructured mesh and why?

Thanks! Nikos
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Old   October 22, 2006, 18:29
Default Re: Structure or unstructured mesh
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You need well shaped cells that have faces that are parallel and perpendicular to the blade suface. They need to follow the blade contours. Whether you do that with a structured or unstructured mesh is completely irrelevant.
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Old   November 9, 2006, 18:35
Default Re: Structure or unstructured mesh
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What i did for a foil was creating a boundary layer that is perpendicular to the foil surface (about 20 layers; up to you)(ie. the boundary followed the shape of foil , they call it C grid) then outside the boundary layer, i made unstructured tringular mesh.then the further outside i used rectangular structured mesh. thats what my lecturer taught me.
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