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ENH: Updated function object documentation
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@ -33,6 +33,25 @@ Description
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- total current number of parcels
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- total current mass of parcels
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Example of function object specification:
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\verbatim
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cloudInfo1
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{
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// Type of functionObject
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type cloudInfo;
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// Where to load it from (if not already in solver)
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functionObjectLibs ("libcloudFunctionObjects.so");
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// Clouds to process
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clouds
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(
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kinematicCloud1
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thermoCloud1
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);
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}
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\endverbatim
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SourceFiles
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cloudInfo.C
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IOcloudInfo.H
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@ -2,7 +2,7 @@
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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) 2011 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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@ -28,8 +28,42 @@ Group
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grpFieldFunctionObjects
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Description
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Calculates the field averages given list of fieldAverageItems, e.g.
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This function object calculates average quantities for a user-specified
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selection of fields. Fields are entered as a list of sub-dictionaries,
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which indicate the type of averages to perform, and can be updated during
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the calculation. The current options include:
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- \c mean: arithmetic mean:
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\f[
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\overline{x} = \frac{\Sigma x i}{\Sigma i}
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\f]
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- \c prime2Mean: prime-squared mean
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\f[
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\overline{x'}^2 = \frac{\Sigma (x - \overline{x}) i}{\Sigma i}
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\f]
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- base: average over 'time', or 'iteration' (\f$i\f$ in the above)
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- window: optional averaging window, specified in 'base' units
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\note
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To employ the \c prime2Mean option, the \c mean option must be selecetd.
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Average field names are constructed by concatenating the base field with
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the averaging type, e.g. when averaging field 'U', the resultant fields
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are:
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- arithmetic mean field, UMean
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- prime-squared field, UPrime2Mean
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Information regarding the number of averaging steps, and total averaging
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time are written on a per-field basis to the
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\c fieldAveragingProperties dictionary, located in \<time\>/uniform
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When restarting form a previous calculation, the averaging is continuous.
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However, the averaging process can be restarted using the \c cleanRestart
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option.
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To restart the averaging process after each calculation output time,
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the \c resetOnOutput option can be applied.
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Example of function object specification:
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\verbatim
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fieldAverage1
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{
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@ -39,16 +73,13 @@ Description
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// Where to load it from (if not already in solver)
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functionObjectLibs ("libfieldFunctionObjects.so");
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// Whether to perform a clean restart, or start from previous
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// averaging info if available
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// Perform a clean restart?
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cleanRestart true;
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// Whether to reset the averaged fields after they have been written.
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// Used to average over only the preceding write interval for transient
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// cases.
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resetOnOutput true;
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// Reset the averaged fields after they have been written?
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resetOnOutput false;
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// Fields to be averaged. runTime modifiable!
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// Fields to be averaged
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fields
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(
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U
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@ -67,22 +98,10 @@ Description
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}
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\endverbatim
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Member function calcAverages() calculates the averages.
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Member function fieldAverage::write() calls calcAverages(). Average
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field names are constructed by concatenating the base field with the
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averaging type, e.g.
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- base field, U
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- arithmetic mean field, UMean
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- prime-squared field, UPrime2Mean
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Information regarding the number of averaging steps, and total averaging
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time are written on a (base) per-field basis to the
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fieldAveragingProperties dictionary, located in \<time\>/uniform
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SourceFiles
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fieldAverage.C
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fieldAverageTemplates.C
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fieldAverageItem.C
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\*---------------------------------------------------------------------------*/
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@ -2,7 +2,7 @@
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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) 2011 OpenFOAM Foundation
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\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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@ -25,16 +25,16 @@ Class
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Foam::fieldAverageItem
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Description
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Helper class to describe what form of averaging to apply. A set will be
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Helper class to describe what form of averaging to apply. A set will be
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applied to each base field in Foam::fieldAverage, of the form:
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\verbatim
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{
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mean on;
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prime2Mean on;
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base time; // iteration
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window 200; // optional averaging window
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}
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{
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mean on;
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prime2Mean on;
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base time; // iteration
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window 200; // optional averaging window
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}
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\endverbatim
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The averaging window corresponds to the averaging interval (iters or time)
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@ -28,8 +28,40 @@ Group
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grpFieldFunctionObjects
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Description
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Transforms fields from global cartesian co-ordinates to local co-ordinate
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system
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This function object transforms a user-specified selection of fields from
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global Cartesian co-ordinates to a local co-ordinate system. The fields
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are run-time modifiable.
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Example of function object specification:
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\verbatim
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fieldCoordinateSystemTransform1
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{
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// Type of functionObject
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type fieldCoordinateSystemTransform;
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// Where to load it from (if not already in solver)
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functionObjectLibs ("libfieldFunctionObjects.so");
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// Fields to be transformed
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fields
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(
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U
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UMean
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UPrime2Mean
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);
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// Co-ordinate system
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coordinateSystem
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{
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origin (0.001 0 0);
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e1 (1 0.15 0);
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e3 (0 0 -1);
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}
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}
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\endverbatim
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SeeAlso
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Foam::coordinateSystem
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SourceFiles
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fieldCoordinateSystemTransform.C
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