Using FFT for Data Analysis
You need to have a variable which is stored in the time history in a file. Then use process file data in FFT tab of ANSYS-CFX or ANSYS-FLUENT, upload the file and plot FFT of it. When the researcher tries to use a mathematical tool such as FFT it is always very important to understand it. If you want a SPL Sound Pressure Level you need to access the pressure variable vs time. Then you can take the FFT for an n time processes.
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