Utility to perform noise analysis of pressure data using the noiseFFT library. More...
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Utility to perform noise analysis of pressure data using the noiseFFT library.
Original source file noise.C
Control settings are read from the $FOAM_CASE/system/noiseDict dictionary, or user-specified dictionary using the -dict option. Pressure data is read using a CSV reader:
pRef 101325; N 65536; nw 100; f1 25; fU 10000; graphFormat raw; pressureData { fileName "pressureData" nHeaderLine 1; // number of header lines refColumn 0; // reference column index componentColumns (1); // component column indices separator " "; // optional (defaults to ",") mergeSeparators no; // merge multiple separators outOfBounds clamp; // optional out-of-bounds handling interpolationScheme linear; // optional interpolation scheme }
where
Property | Description | Required | Default value |
---|---|---|---|
pRef | Reference pressure | no | 0 |
N | Number of samples in sampling window | no | 65536 |
nw | Number of sampling windows | no | 100 |
fl | Lower frequency band | no | 25 |
fU | Upper frequency band | no | 10000 |
graphFormat | Output graph format | no | raw |
Current graph outputs include:
Definition in file noise.C.