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-   -   cell size for accoustic analysis (http://www.cfd-online.com/Forums/ansys-meshing/76888-cell-size-accoustic-analysis.html)

Manan June 8, 2010 03:35

cell size for accoustic analysis
 
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 ???

Chris D June 8, 2010 10:52

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.

Manan June 9, 2010 00:54

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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