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cell size for accoustic analysis

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Old   June 8, 2010, 02:35
Default cell size for accoustic analysis
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Manan
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hi.
i m modellling a compressor stage to determine the rotor stator interaction and accoustical failure detection...........for this how can i determine the suitable cell size for meshing if the blade height is 178mm and airfoil width is 4mm ..... do u have any idea about this ???
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Old   June 8, 2010, 09:52
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Chris
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If you know the range of frequencies you want to resolve, and also the number of gridpoints per wavelength that your need for your spatial scheme, then I think you should be able to back out the grid spacing from that.
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Old   June 8, 2010, 23:54
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thax 4 reply chris

i know all ranges of frequencies but i could not understand the gridpoints per wavelengh p[lz explain it to me and also please tell me how to calculate the grid size ......... thanx
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