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ENH: Added new pointNoise model to process point data to replicate old behaviour
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andy
151
src/randomProcesses/noise/noiseModels/pointNoise/pointNoise.C
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151
src/randomProcesses/noise/noiseModels/pointNoise/pointNoise.C
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2015-2016 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "pointNoise.H"
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#include "noiseFFT.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace noiseModels
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{
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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defineTypeNameAndDebug(pointNoise, 0);
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addToRunTimeSelectionTable(noiseModel, pointNoise, dictionary);
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// * * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * //
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void pointNoise::filterTimeData
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(
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const CSV<scalar>& pData,
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scalarField& t,
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scalarField& p
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)
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{
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const scalarField t0(pData.x());
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const scalarField p0(pData.y());
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DynamicList<scalar> tf(t0.size());
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DynamicList<scalar> pf(t0.size());
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forAll(t0, timeI)
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{
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if (t0[timeI] >= startTime_)
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{
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tf.append(t0[timeI]);
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pf.append(p0[timeI]);
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}
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}
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t.transfer(tf);
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p.transfer(pf);
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void pointNoise::calculate()
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{
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// Point data only handled by master
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if (!Pstream::master())
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{
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return;
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}
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Info<< "Reading data file" << endl;
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CSV<scalar> pData("pressure", dict_, "Data");
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fileName baseFileName(pData.fName().lessExt());
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// Time and pressure history data
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scalarField t, p;
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filterTimeData(pData, t, p);
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Info<< " read " << t.size() << " values" << nl << endl;
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Info<< "Creating noise FFT" << endl;
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const scalar deltaT = checkUniformTimeStep(t);
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// Determine the windowing
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windowModelPtr_->validate(t.size());
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// Create the fft
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noiseFFT nfft(deltaT, p);
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nfft -= pRef_;
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graph Pf(nfft.RMSmeanPf(windowModelPtr_()));
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Info<< " Creating graph for " << Pf.title() << endl;
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Pf.write(baseFileName + graph::wordify(Pf.title()), graphFormat_);
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graph Lf(nfft.Lf(Pf));
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Info<< " Creating graph for " << Lf.title() << endl;
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Lf.write(baseFileName + graph::wordify(Lf.title()), graphFormat_);
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graph PSDf(nfft.PSDf(windowModelPtr_()));
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Info<< " Creating graph for " << PSDf.title() << endl;
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PSDf.write(baseFileName + graph::wordify(PSDf.title()), graphFormat_);
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graph PSD(nfft.PSD(PSDf));
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Info<< " Creating graph for " << PSD.title() << endl;
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PSD.write(baseFileName + graph::wordify(PSD.title()), graphFormat_);
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labelList octave13BandIDs;
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noiseFFT::octaveFrequenciesIDs(Pf.x(), fLower_, fUpper_, 3, octave13BandIDs);
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graph Ldelta(nfft.Ldelta(Lf, octave13BandIDs));
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Info<< " Creating graph for " << Ldelta.title() << endl;
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Ldelta.write(baseFileName + graph::wordify(Ldelta.title()), graphFormat_);
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graph Pdelta(nfft.Pdelta(Pf, octave13BandIDs));
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Info<< " Creating graph for " << Pdelta.title() << endl;
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Pdelta.write(baseFileName + graph::wordify(Pdelta.title()), graphFormat_);
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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pointNoise::pointNoise(const dictionary& dict)
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:
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noiseModel(dict),
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graphFormat_(dict.lookupOrDefault<word>("graphFormat", "raw"))
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{}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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pointNoise::~pointNoise()
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{}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace noiseModels
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} // End namespace Foam
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// ************************************************************************* //
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148
src/randomProcesses/noise/noiseModels/pointNoise/pointNoise.H
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148
src/randomProcesses/noise/noiseModels/pointNoise/pointNoise.H
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@ -0,0 +1,148 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2015-2016 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
|
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|
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
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You should have received a copy of the GNU General Public License
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||||
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::noiseModels::pointNoise
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Description
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Perform noise analysis on point-based pressure data.
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Input data is read from a dictionary, e.g.
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\verbatim
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// Pressure reference
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pRef 0;
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// Number of samples in sampling window
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// Must be a power of 2, default = 2^16 (=65536)
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N 4096;
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// Lower frequency bounds
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fl 25;
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// Upper frequency bounds
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fu 25;
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// Start time
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startTime 0;
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windowModel <modelType>
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<modelType>Coeffs
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{
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...
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}
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// Pressure data supplied in CSV file format
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csvFileData
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{
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fileName "pressureData";
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nHeaderLine 1;
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refColumn 0;
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componentColumns (1);
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separator " ";
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mergeSeparators yes;
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}
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graphFormat raw;
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\endverbatim
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SourceFiles
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pointNoise.C
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SeeAlso
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noiseModel.H
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windowModel.H
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\*---------------------------------------------------------------------------*/
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#ifndef pointNoise_H
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#define pointNoise_H
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#include "noiseModel.H"
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#include "CSV.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace noiseModels
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{
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/*---------------------------------------------------------------------------*\
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Class pointNoise Declaration
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\*---------------------------------------------------------------------------*/
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class pointNoise
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:
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public noiseModel
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{
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protected:
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// Protected data
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//- Graph format
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word graphFormat_;
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// Protected Member Functions
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void filterTimeData
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(
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const CSV<scalar>& pData,
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scalarField& t,
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scalarField& p
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);
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public:
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//- Runtime type information
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TypeName("pointNoise");
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//- Constructor
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pointNoise(const dictionary& dict);
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//- Destructor
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virtual ~pointNoise();
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// Public Member Functions
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//- Calculate
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virtual void calculate();
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace noiseModels
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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