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Appropriate mesh for resolving noise frequency

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Old   June 29, 2014, 14:18
Default Appropriate mesh for resolving noise frequency
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Henry Arrigo
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Hi
Is there any equivalent option in CFX to what is known as the "Mesh Frequency Cut-off" option in Star-CCM+?
If not, how is it possible to get sure that a CFX mesh can resolve target frequencies?
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Old   June 29, 2014, 19:34
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Glenn Horrocks
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I do not know what Mesh frequency cut off in Star is. Can you please explain it?
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Old   June 30, 2014, 07:00
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"The mesh frequency cutoff scalar function can be used to qualify the suitability of the mesh ahead of a transient calculation by analyzing the frequency that the mesh can resolve. This analysis determines where and by how much to refine the mesh to capture up to the desired frequency. If, for example, the function value shows 1 kHz and you want to resolve up to 2 kHz, then refine the mesh by a factor of two."
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Old   June 30, 2014, 08:44
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CFX does not have anything like this built in. If you know the maths which defines the function then you can probably generate it as a user variable.
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