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Third Dimension for 2D flows ICEM CFD

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Old   October 10, 2006, 09:34
Default Third Dimension for 2D flows ICEM CFD
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Ben
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hi folks, does anyone know a rule of thumb for the extrusion layer thickness in ICEM. I have 2D Domain 1.5 m long and 0.35m breadth. i want to use a layer thickness of 0.01m. is this ok? oh, some info to my cells: first cell in spanwise direction is 1 micromemter and in the x direction, the leading edge region has a cell size of 10 micrometer. it seems like the third dimension required by ansys cfd does have an effect on convergence. thanks in advance
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Old   October 10, 2006, 18:20
Default Re: Third Dimension for 2D flows ICEM CFD
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Joe
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Rule of thumb is to keep the thickness the same order as your smallest cell. I have violated this many times with no ill effects though ...
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Old   October 11, 2006, 14:38
Default Re: Third Dimension for 2D flows ICEM CFD
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ben akih
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thanks joe, seems like i always violate the rule of thumb. i did have problems once trying to keep the thickness as small as my smallest cell (1 micrometer) and i had convergence problems. may i was at the very far end. thanks though. ben.
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