Perform noise analysis on point-based pressure data. More...

Inheritance diagram for pointNoise:

Collaboration diagram for pointNoise:

Public Member Functions
	TypeName ("pointNoise")
	Runtime type information. More...

	pointNoise (const dictionary &dict, const bool readFields=true)
	Constructor. More...

virtual	~pointNoise ()=default
	Destructor. More...

virtual bool	read (const dictionary &dict)
	Read from dictionary. More...

virtual void	calculate ()
	Calculate. More...

Public Member Functions inherited from noiseModel
	TypeName ("noiseModel")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, noiseModel, dictionary,(const dictionary &dict),(dict))
	Run time selection table. More...

	noiseModel (const dictionary &dict, const bool readFields=true)
	Constructor. More...

virtual	~noiseModel ()=default
	Destructor. More...

Protected Member Functions
void	filterTimeData (const scalarField &t0, const scalarField &p0, scalarField &t, scalarField &p) const

void	processData (const label dataseti, const Function1Types::CSV< scalar > &data)
	Process the CSV data. More...

Protected Member Functions inherited from noiseModel
void	readWriteOption (const dictionary &dict, const word &lookup, bool &option) const
	Helper function to read write options and provide info feedback. More...

scalar	checkUniformTimeStep (const scalarList &times) const
	Check and return uniform time step. More...

bool	validateBounds (const scalarList &p) const
	Return true if all pressure data is within min/max bounds. More...

label	findStartTimeIndex (const instantList &allTimes, const scalar startTime) const
	Find and return start time index. More...

fileName	baseFileDir (const label dataseti) const
	Return the base output directory. More...

	noiseModel (const noiseModel &)=delete
	No copy construct. More...

void	operator= (const noiseModel &)=delete
	No copy assignment. More...

Protected Attributes
List< fileName >	inputFileNames_
	Input file names - optional. More...

Protected Attributes inherited from noiseModel
const dictionary	dict_
	Copy of dictionary used for construction. More...

scalar	rhoRef_
	Reference density (to convert from kinematic to static pressure) More...

label	nSamples_
	Number of samples in sampling window, default = 2^16. More...

scalar	fLower_
	Lower frequency limit, default = 25Hz. More...

scalar	fUpper_
	Upper frequency limit, default = 10kHz. More...

bool	customBounds_
	Flag to indicate that custom frequency bounds are being used. More...

scalar	startTime_
	Start time, default = 0s. More...

autoPtr< windowModel >	windowModelPtr_
	Window model. More...

word	graphFormat_
	Graph format. More...

scalar	minPressure_
	Min pressure value. More...

scalar	maxPressure_
	Min pressure value. More...

fileName	outputPrefix_
	Output file prefix, default = ''. More...

bool	writePrmsf_
	Write Prmsf; default = yes. More...

bool	writeSPL_
	Write SPL; default = yes. More...

bool	writePSD_
	Write PSD; default = yes. More...

bool	writePSDf_
	Write PSDf; default = yes. More...

bool	writeOctaves_
	Write writeOctaves; default = yes. More...

Additional Inherited Members
Static Public Member Functions inherited from noiseModel
static autoPtr< noiseModel >	New (const dictionary &dict)
	Selector. More...

Detailed Description

Perform noise analysis on point-based pressure data.

Input data is read from a dictionary, e.g.

// Pressure reference
pRef            0;

// Number of samples in sampling window, default = 2^16 (=65536)
N               4096;

// Lower frequency bounds
fl              25;

// Upper frequency bounds
fu              25;

// Start time
startTime       0;

windowModel     <modelType>
<modelType>Coeffs
{
    ...
}

// Pressure data supplied in CSV file format
file            "pressureData";
//files           ("pressureData1" "pressureData2");
nHeaderLine     1;
refColumn       0;
componentColumns (1);
separator       " ";
mergeSeparators yes;

graphFormat     raw;

Source files

See also: noiseModel.H windowModel.H

Definition at line 94 of file pointNoise.H.

Constructor & Destructor Documentation

◆ pointNoise()

pointNoise	(	const dictionary &	dict,
		const bool	readFields = `true`
	)

Constructor.

Definition at line 207 of file pointNoise.C.

References dict, pointNoise::read(), and Foam::readFields().

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◆ ~pointNoise()

virtual ~pointNoise ( )

virtualdefault

Destructor.

Member Function Documentation

◆ filterTimeData()

void filterTimeData	(	const scalarField &	t0,
		const scalarField &	p0,
		scalarField &	t,
		scalarField &	p
	)		const

protected

Definition at line 48 of file pointNoise.C.

References forAll, p, and p0.

◆ processData()

void processData	(	const label	dataseti,
		const Function1Types::CSV< scalar > &	data
	)

protected

Process the CSV data.

Definition at line 73 of file pointNoise.C.

References Foam::endl(), Foam::Info, Foam::nl, windowModel::nSamples(), noiseFFT::octaveBandInfo(), p, noiseFFT::PSD(), noiseFFT::setData(), graph::setXRange(), noiseFFT::SPL(), messageStream::title(), graph::title(), graph::wordify(), Ostream::write(), and graph::write().

Referenced by pointNoise::calculate().

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◆ TypeName()

TypeName ( "pointNoise" )

Runtime type information.

◆ read()

bool read ( const dictionary & dict )

virtual

Read from dictionary.

Reimplemented from noiseModel.

Definition at line 244 of file pointNoise.C.

References dict, pointNoise::inputFileNames_, noiseModel::read(), and List< T >::resize().

Referenced by pointNoise::pointNoise().

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◆ calculate()

void calculate ( )

virtual

Calculate.

Implements noiseModel.

Definition at line 220 of file pointNoise.C.

References noiseModel::dict_, argList::envGlobalPath(), string::expand(), forAll, pointNoise::inputFileNames_, fileName::isAbsolute(), UPstream::master(), and pointNoise::processData().

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Member Data Documentation

◆ inputFileNames_

List<fileName> inputFileNames_

protected

Input file names - optional.

Definition at line 104 of file pointNoise.H.

Referenced by pointNoise::calculate(), and pointNoise::read().

The documentation for this class was generated from the following files:

src/randomProcesses/noise/noiseModels/pointNoise/pointNoise.H
src/randomProcesses/noise/noiseModels/pointNoise/pointNoise.C

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ pointNoise()

◆ ~pointNoise()

Member Function Documentation

◆ filterTimeData()

◆ processData()

◆ TypeName()

◆ read()

◆ calculate()

Member Data Documentation

◆ inputFileNames_