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ENH: forceCoeffs function object - added data output into bins

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This commit is contained in:
andy
2012-09-24 12:39:04 +01:00
parent d8cb5d97f4
commit 4ad23cfed4
2 changed files with 72 additions and 24 deletions
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86
src/postProcessing/functionObjects/forces/forceCoeffs/forceCoeffs.C
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -27,6 +27,7 @@ License
#include "dictionary.H"
#include "Time.H"
#include "Pstream.H"
#include "IOmanip.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
@ -89,7 +90,8 @@ void Foam::forceCoeffs::writeFileHeader()
if (forcesFilePtr_.valid())
{
forcesFilePtr_()
<< "# Time" << tab << "Cd" << tab << "Cl" << tab << "Cm" << endl;
<< "# Time" << tab << "Cm" << tab << "Cd" << tab << "Cl" << tab
<< "Cl(f)" << "Cl(r)" << endl;
}
}
@ -112,37 +114,77 @@ void Foam::forceCoeffs::write()
{
// Create the forces file if not already created
makeFile();
forcesMoments fm = forces::calcForcesMoment();
scalar pDyn = 0.5*rhoRef_*magUInf_*magUInf_;
vector totForce = fm.first().first() + fm.first().second();
vector totMoment = fm.second().first() + fm.second().second();
scalar liftForce = totForce & liftDir_;
scalar dragForce = totForce & dragDir_;
scalar pitchMoment = totMoment & pitchAxis_;
scalar Cl = liftForce/(Aref_*pDyn);
scalar Cd = dragForce/(Aref_*pDyn);
scalar Cm = pitchMoment/(Aref_*lRef_*pDyn);
forces::calcForcesMoment();
if (Pstream::master())
{
scalar pDyn = 0.5*rhoRef_*magUInf_*magUInf_;
Field<vector> totForce(force_[0] + force_[1]);
Field<vector> totMoment(moment_[0] + moment_[1]);
List<Field<scalar> > coeffs(3);
coeffs[0].setSize(nBin_);
coeffs[1].setSize(nBin_);
coeffs[2].setSize(nBin_);
// lift, drag and moment
coeffs[0] = (totForce & liftDir_)/(Aref_*pDyn);
coeffs[1] = (totForce & dragDir_)/(Aref_*pDyn);
coeffs[2] = (totMoment & pitchAxis_)/(Aref_*lRef_*pDyn);
scalar Cl = sum(coeffs[0]);
scalar Cd = sum(coeffs[1]);
scalar Cm = sum(coeffs[2]);
scalar Clf = Cl/2.0 - Cm;
scalar Clr = Cl/2.0 + Cm;
forcesFilePtr_()
<< obr_.time().value() << tab
<< Cd << tab << Cl << tab << Cm << endl;
<< Cm << tab << Cd << tab << Cl << tab << Clf << tab << Clr
<< endl;
if (log_)
{
Info<< "forceCoeffs output:" << nl
Info<< type() << " output:" << nl
<< " Cm = " << Cm << nl
<< " Cd = " << Cd << nl
<< " Cl = " << Cl << nl
<< " Cl(f) = " << Cl/2.0 - Cm << nl
<< " Cl(r) = " << Cl/2.0 + Cm << nl
<< endl;
<< " Cl(f) = " << Clf << nl
<< " Cl(r) = " << Clr << endl;
}
if (nBin_ > 1)
{
autoPtr<writer<scalar> >
binWriterPtr(writer<scalar>::New(binFormat_));
wordList fieldNames(IStringStream("(lift drag moment)")());
coordSet axis
(
"forceCoeffs",
"distance",
binPoints_,
mag(binPoints_)
);
fileName forcesDir =
baseFileDir()/"bins"/obr_.time().timeName();
mkDir(forcesDir);
if (log_)
{
Info<< " Writing bins to " << forcesDir << endl;
}
OFstream osCoeffs(forcesDir/"forceCoeffs");
binWriterPtr->write(axis, fieldNames, coeffs, osCoeffs);
}
if (log_)
{
Info<< endl;
}
}
}

10
src/postProcessing/functionObjects/forces/forceCoeffs/forceCoeffs.H
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2012 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -26,7 +26,7 @@ Class
Description
Derived from the forces function object, creates a specialisation to
calculate lift and drag forces.
calculate lift, drag and moment coefficients.
SourceFiles
forceCoeffs.C
@ -81,6 +81,12 @@ class forceCoeffs
scalar Aref_;
// Bin information
//- Writer for bin data
autoPtr<writer<scalar> > binWriterPtr_;
// Private Member Functions
//- Disallow default bitwise copy construct