mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-11-28 03:28:01 +00:00
rotorDiskSource: move templated functions into the template .C file
This commit is contained in:
Henry
@ -509,132 +509,6 @@ Foam::fv::rotorDiskSource::~rotorDiskSource()
|
|||||||
|
|
||||||
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
|
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
|
||||||
|
|
||||||
template<class RhoFieldType>
|
|
||||||
void Foam::fv::rotorDiskSource::calculate
|
|
||||||
(
|
|
||||||
const RhoFieldType& rho,
|
|
||||||
const vectorField& U,
|
|
||||||
const scalarField& thetag,
|
|
||||||
vectorField& force,
|
|
||||||
const bool divideVolume,
|
|
||||||
const bool output
|
|
||||||
) const
|
|
||||||
{
|
|
||||||
const scalarField& V = mesh_.V();
|
|
||||||
|
|
||||||
// logging info
|
|
||||||
scalar dragEff = 0.0;
|
|
||||||
scalar liftEff = 0.0;
|
|
||||||
scalar AOAmin = GREAT;
|
|
||||||
scalar AOAmax = -GREAT;
|
|
||||||
|
|
||||||
forAll(cells_, i)
|
|
||||||
{
|
|
||||||
if (area_[i] > ROOTVSMALL)
|
|
||||||
{
|
|
||||||
const label cellI = cells_[i];
|
|
||||||
|
|
||||||
const scalar radius = x_[i].x();
|
|
||||||
|
|
||||||
// velocity in local cylindrical reference frame
|
|
||||||
vector Uc = localAxesRotation_->transform(U[cellI], i);
|
|
||||||
|
|
||||||
// transform from rotor cylindrical into local coning system
|
|
||||||
Uc = R_[i] & Uc;
|
|
||||||
|
|
||||||
// set radial component of velocity to zero
|
|
||||||
Uc.x() = 0.0;
|
|
||||||
|
|
||||||
// set blade normal component of velocity
|
|
||||||
Uc.y() = radius*omega_ - Uc.y();
|
|
||||||
|
|
||||||
// determine blade data for this radius
|
|
||||||
// i2 = index of upper radius bound data point in blade list
|
|
||||||
scalar twist = 0.0;
|
|
||||||
scalar chord = 0.0;
|
|
||||||
label i1 = -1;
|
|
||||||
label i2 = -1;
|
|
||||||
scalar invDr = 0.0;
|
|
||||||
blade_.interpolate(radius, twist, chord, i1, i2, invDr);
|
|
||||||
|
|
||||||
// flip geometric angle if blade is spinning in reverse (clockwise)
|
|
||||||
scalar alphaGeom = thetag[i] + twist;
|
|
||||||
if (omega_ < 0)
|
|
||||||
{
|
|
||||||
alphaGeom = mathematical::pi - alphaGeom;
|
|
||||||
}
|
|
||||||
|
|
||||||
// effective angle of attack
|
|
||||||
scalar alphaEff = alphaGeom - atan2(-Uc.z(), Uc.y());
|
|
||||||
if (alphaEff > mathematical::pi)
|
|
||||||
{
|
|
||||||
alphaEff -= mathematical::twoPi;
|
|
||||||
}
|
|
||||||
if (alphaEff < -mathematical::pi)
|
|
||||||
{
|
|
||||||
alphaEff += mathematical::twoPi;
|
|
||||||
}
|
|
||||||
|
|
||||||
AOAmin = min(AOAmin, alphaEff);
|
|
||||||
AOAmax = max(AOAmax, alphaEff);
|
|
||||||
|
|
||||||
// determine profile data for this radius and angle of attack
|
|
||||||
const label profile1 = blade_.profileID()[i1];
|
|
||||||
const label profile2 = blade_.profileID()[i2];
|
|
||||||
|
|
||||||
scalar Cd1 = 0.0;
|
|
||||||
scalar Cl1 = 0.0;
|
|
||||||
profiles_[profile1].Cdl(alphaEff, Cd1, Cl1);
|
|
||||||
|
|
||||||
scalar Cd2 = 0.0;
|
|
||||||
scalar Cl2 = 0.0;
|
|
||||||
profiles_[profile2].Cdl(alphaEff, Cd2, Cl2);
|
|
||||||
|
|
||||||
scalar Cd = invDr*(Cd2 - Cd1) + Cd1;
|
|
||||||
scalar Cl = invDr*(Cl2 - Cl1) + Cl1;
|
|
||||||
|
|
||||||
// apply tip effect for blade lift
|
|
||||||
scalar tipFactor = neg(radius/rMax_ - tipEffect_);
|
|
||||||
|
|
||||||
// calculate forces perpendicular to blade
|
|
||||||
scalar pDyn = 0.5*rho[cellI]*magSqr(Uc);
|
|
||||||
|
|
||||||
scalar f = pDyn*chord*nBlades_*area_[i]/radius/mathematical::twoPi;
|
|
||||||
vector localForce = vector(0.0, -f*Cd, tipFactor*f*Cl);
|
|
||||||
|
|
||||||
// accumulate forces
|
|
||||||
dragEff += rhoRef_*localForce.y();
|
|
||||||
liftEff += rhoRef_*localForce.z();
|
|
||||||
|
|
||||||
// convert force from local coning system into rotor cylindrical
|
|
||||||
localForce = invR_[i] & localForce;
|
|
||||||
|
|
||||||
// convert force to global cartesian co-ordinate system
|
|
||||||
force[cellI] = localAxesRotation_->invTransform(localForce, i);
|
|
||||||
|
|
||||||
if (divideVolume)
|
|
||||||
{
|
|
||||||
force[cellI] /= V[cellI];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (output)
|
|
||||||
{
|
|
||||||
reduce(AOAmin, minOp<scalar>());
|
|
||||||
reduce(AOAmax, maxOp<scalar>());
|
|
||||||
reduce(dragEff, sumOp<scalar>());
|
|
||||||
reduce(liftEff, sumOp<scalar>());
|
|
||||||
|
|
||||||
Info<< type() << " output:" << nl
|
|
||||||
<< " min/max(AOA) = " << radToDeg(AOAmin) << ", "
|
|
||||||
<< radToDeg(AOAmax) << nl
|
|
||||||
<< " Effective drag = " << dragEff << nl
|
|
||||||
<< " Effective lift = " << liftEff << endl;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
void Foam::fv::rotorDiskSource::addSup
|
void Foam::fv::rotorDiskSource::addSup
|
||||||
(
|
(
|
||||||
fvMatrix<vector>& eqn,
|
fvMatrix<vector>& eqn,
|
||||||
|
|||||||
@ -2,7 +2,7 @@
|
|||||||
========= |
|
========= |
|
||||||
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
||||||
\\ / O peration |
|
\\ / O peration |
|
||||||
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
|
\\ / A nd | Copyright (C) 2011-2014 OpenFOAM Foundation
|
||||||
\\/ M anipulation |
|
\\/ M anipulation |
|
||||||
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
||||||
License
|
License
|
||||||
@ -26,8 +26,136 @@ License
|
|||||||
#include "rotorDiskSource.H"
|
#include "rotorDiskSource.H"
|
||||||
#include "volFields.H"
|
#include "volFields.H"
|
||||||
|
|
||||||
|
using namespace Foam::constant;
|
||||||
|
|
||||||
// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
|
// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
|
||||||
|
|
||||||
|
template<class RhoFieldType>
|
||||||
|
void Foam::fv::rotorDiskSource::calculate
|
||||||
|
(
|
||||||
|
const RhoFieldType& rho,
|
||||||
|
const vectorField& U,
|
||||||
|
const scalarField& thetag,
|
||||||
|
vectorField& force,
|
||||||
|
const bool divideVolume,
|
||||||
|
const bool output
|
||||||
|
) const
|
||||||
|
{
|
||||||
|
const scalarField& V = mesh_.V();
|
||||||
|
|
||||||
|
// logging info
|
||||||
|
scalar dragEff = 0.0;
|
||||||
|
scalar liftEff = 0.0;
|
||||||
|
scalar AOAmin = GREAT;
|
||||||
|
scalar AOAmax = -GREAT;
|
||||||
|
|
||||||
|
forAll(cells_, i)
|
||||||
|
{
|
||||||
|
if (area_[i] > ROOTVSMALL)
|
||||||
|
{
|
||||||
|
const label cellI = cells_[i];
|
||||||
|
|
||||||
|
const scalar radius = x_[i].x();
|
||||||
|
|
||||||
|
// velocity in local cylindrical reference frame
|
||||||
|
vector Uc = localAxesRotation_->transform(U[cellI], i);
|
||||||
|
|
||||||
|
// transform from rotor cylindrical into local coning system
|
||||||
|
Uc = R_[i] & Uc;
|
||||||
|
|
||||||
|
// set radial component of velocity to zero
|
||||||
|
Uc.x() = 0.0;
|
||||||
|
|
||||||
|
// set blade normal component of velocity
|
||||||
|
Uc.y() = radius*omega_ - Uc.y();
|
||||||
|
|
||||||
|
// determine blade data for this radius
|
||||||
|
// i2 = index of upper radius bound data point in blade list
|
||||||
|
scalar twist = 0.0;
|
||||||
|
scalar chord = 0.0;
|
||||||
|
label i1 = -1;
|
||||||
|
label i2 = -1;
|
||||||
|
scalar invDr = 0.0;
|
||||||
|
blade_.interpolate(radius, twist, chord, i1, i2, invDr);
|
||||||
|
|
||||||
|
// flip geometric angle if blade is spinning in reverse (clockwise)
|
||||||
|
scalar alphaGeom = thetag[i] + twist;
|
||||||
|
if (omega_ < 0)
|
||||||
|
{
|
||||||
|
alphaGeom = mathematical::pi - alphaGeom;
|
||||||
|
}
|
||||||
|
|
||||||
|
// effective angle of attack
|
||||||
|
scalar alphaEff = alphaGeom - atan2(-Uc.z(), Uc.y());
|
||||||
|
if (alphaEff > mathematical::pi)
|
||||||
|
{
|
||||||
|
alphaEff -= mathematical::twoPi;
|
||||||
|
}
|
||||||
|
if (alphaEff < -mathematical::pi)
|
||||||
|
{
|
||||||
|
alphaEff += mathematical::twoPi;
|
||||||
|
}
|
||||||
|
|
||||||
|
AOAmin = min(AOAmin, alphaEff);
|
||||||
|
AOAmax = max(AOAmax, alphaEff);
|
||||||
|
|
||||||
|
// determine profile data for this radius and angle of attack
|
||||||
|
const label profile1 = blade_.profileID()[i1];
|
||||||
|
const label profile2 = blade_.profileID()[i2];
|
||||||
|
|
||||||
|
scalar Cd1 = 0.0;
|
||||||
|
scalar Cl1 = 0.0;
|
||||||
|
profiles_[profile1].Cdl(alphaEff, Cd1, Cl1);
|
||||||
|
|
||||||
|
scalar Cd2 = 0.0;
|
||||||
|
scalar Cl2 = 0.0;
|
||||||
|
profiles_[profile2].Cdl(alphaEff, Cd2, Cl2);
|
||||||
|
|
||||||
|
scalar Cd = invDr*(Cd2 - Cd1) + Cd1;
|
||||||
|
scalar Cl = invDr*(Cl2 - Cl1) + Cl1;
|
||||||
|
|
||||||
|
// apply tip effect for blade lift
|
||||||
|
scalar tipFactor = neg(radius/rMax_ - tipEffect_);
|
||||||
|
|
||||||
|
// calculate forces perpendicular to blade
|
||||||
|
scalar pDyn = 0.5*rho[cellI]*magSqr(Uc);
|
||||||
|
|
||||||
|
scalar f = pDyn*chord*nBlades_*area_[i]/radius/mathematical::twoPi;
|
||||||
|
vector localForce = vector(0.0, -f*Cd, tipFactor*f*Cl);
|
||||||
|
|
||||||
|
// accumulate forces
|
||||||
|
dragEff += rhoRef_*localForce.y();
|
||||||
|
liftEff += rhoRef_*localForce.z();
|
||||||
|
|
||||||
|
// convert force from local coning system into rotor cylindrical
|
||||||
|
localForce = invR_[i] & localForce;
|
||||||
|
|
||||||
|
// convert force to global cartesian co-ordinate system
|
||||||
|
force[cellI] = localAxesRotation_->invTransform(localForce, i);
|
||||||
|
|
||||||
|
if (divideVolume)
|
||||||
|
{
|
||||||
|
force[cellI] /= V[cellI];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (output)
|
||||||
|
{
|
||||||
|
reduce(AOAmin, minOp<scalar>());
|
||||||
|
reduce(AOAmax, maxOp<scalar>());
|
||||||
|
reduce(dragEff, sumOp<scalar>());
|
||||||
|
reduce(liftEff, sumOp<scalar>());
|
||||||
|
|
||||||
|
Info<< type() << " output:" << nl
|
||||||
|
<< " min/max(AOA) = " << radToDeg(AOAmin) << ", "
|
||||||
|
<< radToDeg(AOAmax) << nl
|
||||||
|
<< " Effective drag = " << dragEff << nl
|
||||||
|
<< " Effective lift = " << liftEff << endl;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
template<class Type>
|
template<class Type>
|
||||||
void Foam::fv::rotorDiskSource::writeField
|
void Foam::fv::rotorDiskSource::writeField
|
||||||
(
|
(
|
||||||
|
|||||||
Reference in New Issue
Block a user