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Flow noise in the time domain
Posted 27.11.2025, 22:38 GMT-5 Acoustics & Vibrations, Computational Fluid Dynamics (CFD) 1 Reply
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Hello there,
I noticed that COMSOL provides a case study on flow noise (Cavity Flow Noise Application ID: 105021), but the noise results obtained are all analyzed in the frequency domain. Can we obtain the noise results in the time domain at a certain monitoring point?
Thank you all in advance.
Hello 浩 张
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Hello 浩 张,
Any results from the frequency domain can be transformed to the time domain using the Frequency to Time FFT step.
Furthermore, there is a functionality to compute the flow noise in the time domain directly using the Linearized Perturbed Compressible Equations (LPCE) that is valid for low Mach number. See here .
-Mark
