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[求助] Source Correlation Length 这个选项的含义

FLUENT assumes that the sound sources are perfectly correlated over the specified correlation length, and zero outside. That is, FLUENT internally builds a source volume with a depth equal to the specified correlation length and neglects sources outside. In your practical 2D application, you will have to estimate the source correlation length; your obtained sound pressure levels will depend on your input. 这是关于fluent在解决气动噪声的关于 Source Correlation Length的解释,这句话有点不太理解其中的含义,求大神指导,谢谢
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