ENH: Moved particle patch data from interaction model to cloud

This commit is contained in:
andy
2012-08-01 15:42:21 +01:00
parent 3b62098b11
commit 7d5b4d8000
7 changed files with 164 additions and 172 deletions

View File

@ -661,7 +661,7 @@ void Foam::KinematicCloud<CloudType>::evolve()
template<class CloudType>
template<class TrackData>
void Foam::KinematicCloud<CloudType>::motion(TrackData& td)
void Foam::KinematicCloud<CloudType>::motion(TrackData& td)
{
td.part() = TrackData::tpLinearTrack;
CloudType::move(td, solution_.trackTime());
@ -670,6 +670,152 @@ void Foam::KinematicCloud<CloudType>::motion(TrackData& td)
}
template<class CloudType>
void Foam::KinematicCloud<CloudType>::patchData
(
const parcelType& p,
const polyPatch& pp,
const scalar trackFraction,
const tetIndices& tetIs,
vector& nw,
vector& Up
) const
{
label patchI = pp.index();
label patchFaceI = pp.whichFace(p.face());
vector n = tetIs.faceTri(mesh_).normal();
n /= mag(n);
vector U = U_.boundaryField()[patchI][patchFaceI];
// Unless the face is rotating, the required normal is n;
nw = n;
if (!mesh_.moving())
{
// Only wall patches may have a non-zero wall velocity from
// the velocity field when the mesh is not moving.
if (isA<wallPolyPatch>(pp))
{
Up = U;
}
else
{
Up = vector::zero;
}
}
else
{
vector U00 = U_.oldTime().boundaryField()[patchI][patchFaceI];
vector n00 = tetIs.oldFaceTri(mesh_).normal();
// Difference in normal over timestep
vector dn = vector::zero;
if (mag(n00) > SMALL)
{
// If the old normal is zero (for example in layer
// addition) then use the current normal, meaning that the
// motion can only be translational, and dn remains zero,
// otherwise, calculate dn:
n00 /= mag(n00);
dn = n - n00;
}
// Total fraction through the timestep of the motion,
// including stepFraction before the current tracking step
// and the current trackFraction
// i.e.
// let s = stepFraction, t = trackFraction
// Motion of x in time:
// |-----------------|---------|---------|
// x00 x0 xi x
//
// where xi is the correct value of x at the required
// tracking instant.
//
// x0 = x00 + s*(x - x00) = s*x + (1 - s)*x00
//
// i.e. the motion covered by previous tracking portions
// within this timestep, and
//
// xi = x0 + t*(x - x0)
// = t*x + (1 - t)*x0
// = t*x + (1 - t)*(s*x + (1 - s)*x00)
// = (s + t - s*t)*x + (1 - (s + t - s*t))*x00
//
// let m = (s + t - s*t)
//
// xi = m*x + (1 - m)*x00 = x00 + m*(x - x00);
//
// In the same form as before.
scalar m =
p.stepFraction()
+ trackFraction
- (p.stepFraction()*trackFraction);
// When the mesh is moving, the velocity field on wall patches
// will contain the velocity associated with the motion of the
// mesh, in which case it is interpolated in time using m.
// For other patches the face velocity will need to be
// reconstructed from the face centre motion.
const vector& Cf = mesh_.faceCentres()[p.face()];
vector Cf00 = mesh_.faces()[p.face()].centre(mesh_.oldPoints());
if (isA<wallPolyPatch>(pp))
{
Up = U00 + m*(U - U00);
}
else
{
Up = (Cf - Cf00)/mesh_.time().deltaTValue();
}
if (mag(dn) > SMALL)
{
// Rotational motion, nw requires interpolation and a
// rotational velocity around face centre correction to Up
// is required.
nw = n00 + m*dn;
// Cf at tracking instant
vector Cfi = Cf00 + m*(Cf - Cf00);
// Normal vector cross product
vector omega = (n00 ^ n);
scalar magOmega = mag(omega);
// magOmega = sin(angle between unit normals)
// Normalise omega vector by magOmega, then multiply by
// angle/dt to give the correct angular velocity vector.
omega *= Foam::asin(magOmega)/(magOmega*mesh_.time().deltaTValue());
// Project position onto face and calculate this position
// relative to the face centre.
vector facePos =
p.position()
- ((p.position() - Cfi) & nw)*nw
- Cfi;
Up += (omega ^ facePos);
}
// No further action is required if the motion is
// translational only, nw and Up have already been set.
}
}
template<class CloudType>
void Foam::KinematicCloud<CloudType>::autoMap(const mapPolyMesh& mapper)
{

View File

@ -554,6 +554,17 @@ public:
template<class TrackData>
void motion(TrackData& td);
//- Calculate the patch normal and velocity to interact with,
// accounting for patch motion if required.
void patchData
(
const parcelType& p,
const polyPatch& pp,
const scalar trackFraction,
const tetIndices& tetIs,
vector& normal,
vector& Up
) const;
// Mapping

View File

@ -233,7 +233,7 @@ bool Foam::LocalInteraction<CloudType>::correct
vector nw;
vector Up;
this->patchData(p, pp, trackFraction, tetIs, nw, Up);
this->owner().patchData(p, pp, trackFraction, tetIs, nw, Up);
// Calculate motion relative to patch velocity
U -= Up;

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
@ -179,159 +179,6 @@ bool Foam::PatchInteractionModel<CloudType>::correct
}
template<class CloudType>
void Foam::PatchInteractionModel<CloudType>::patchData
(
typename CloudType::parcelType& p,
const polyPatch& pp,
const scalar trackFraction,
const tetIndices& tetIs,
vector& nw,
vector& Up
) const
{
const fvMesh& mesh = this->owner().mesh();
const volVectorField& Ufield =
mesh.objectRegistry::lookupObject<volVectorField>(UName_);
label patchI = pp.index();
label patchFaceI = pp.whichFace(p.face());
vector n = tetIs.faceTri(mesh).normal();
n /= mag(n);
vector U = Ufield.boundaryField()[patchI][patchFaceI];
// Unless the face is rotating, the required normal is n;
nw = n;
if (!mesh.moving())
{
// Only wall patches may have a non-zero wall velocity from
// the velocity field when the mesh is not moving.
if (isA<wallPolyPatch>(pp))
{
Up = U;
}
else
{
Up = vector::zero;
}
}
else
{
vector U00 = Ufield.oldTime().boundaryField()[patchI][patchFaceI];
vector n00 = tetIs.oldFaceTri(mesh).normal();
// Difference in normal over timestep
vector dn = vector::zero;
if (mag(n00) > SMALL)
{
// If the old normal is zero (for example in layer
// addition) then use the current normal, meaning that the
// motion can only be translational, and dn remains zero,
// otherwise, calculate dn:
n00 /= mag(n00);
dn = n - n00;
}
// Total fraction thought the timestep of the motion,
// including stepFraction before the current tracking step
// and the current trackFraction
// i.e.
// let s = stepFraction, t = trackFraction
// Motion of x in time:
// |-----------------|---------|---------|
// x00 x0 xi x
//
// where xi is the correct value of x at the required
// tracking instant.
//
// x0 = x00 + s*(x - x00) = s*x + (1 - s)*x00
//
// i.e. the motion covered by previous tracking portions
// within this timestep, and
//
// xi = x0 + t*(x - x0)
// = t*x + (1 - t)*x0
// = t*x + (1 - t)*(s*x + (1 - s)*x00)
// = (s + t - s*t)*x + (1 - (s + t - s*t))*x00
//
// let m = (s + t - s*t)
//
// xi = m*x + (1 - m)*x00 = x00 + m*(x - x00);
//
// In the same form as before.
scalar m =
p.stepFraction()
+ trackFraction
- (p.stepFraction()*trackFraction);
// When the mesh is moving, the velocity field on wall patches
// will contain the velocity associated with the motion of the
// mesh, in which case it is interpolated in time using m.
// For other patches the face velocity will need to be
// reconstructed from the face centre motion.
const vector& Cf = mesh.faceCentres()[p.face()];
vector Cf00 = mesh.faces()[p.face()].centre(mesh.oldPoints());
if (isA<wallPolyPatch>(pp))
{
Up = U00 + m*(U - U00);
}
else
{
Up = (Cf - Cf00)/this->owner().time().deltaTValue();
}
if (mag(dn) > SMALL)
{
// Rotational motion, nw requires interpolation and a
// rotational velocity around face centre correction to Up
// is required.
nw = n00 + m*dn;
// Cf at tracking instant
vector Cfi = Cf00 + m*(Cf - Cf00);
// Normal vector cross product
vector omega = (n00 ^ n);
scalar magOmega = mag(omega);
// magOmega = sin(angle between unit normals)
// Normalise omega vector by magOmega, then multiply by
// angle/dt to give the correct angular velocity vector.
omega *=
Foam::asin(magOmega)
/(magOmega*this->owner().time().deltaTValue());
// Project position onto face and calculate this position
// relative to the face centre.
vector facePos =
p.position()
- ((p.position() - Cfi) & nw)*nw
- Cfi;
Up += (omega ^ facePos);
}
// No further action is required if the motion is
// translational only, nw and Up have already been set.
}
}
template<class CloudType>
void Foam::PatchInteractionModel<CloudType>::info(Ostream& os)
{

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
@ -164,18 +164,6 @@ public:
const tetIndices& tetIs
);
//- Calculate the patch normal and velocity to interact with,
// accounting for patch motion if required.
void patchData
(
typename CloudType::parcelType& p,
const polyPatch& pp,
const scalar trackFraction,
const tetIndices& tetIs,
vector& normal,
vector& Up
) const;
// I-O

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
@ -74,7 +74,7 @@ bool Foam::Rebound<CloudType>::correct
vector nw;
vector Up;
this->patchData(p, pp, trackFraction, tetIs, nw, Up);
this->owner().patchData(p, pp, trackFraction, tetIs, nw, Up);
// Calculate motion relative to patch velocity
U -= Up;

View File

@ -148,7 +148,7 @@ bool Foam::StandardWallInteraction<CloudType>::correct
vector nw;
vector Up;
this->patchData(p, pp, trackFraction, tetIs, nw, Up);
this->owner().patchData(p, pp, trackFraction, tetIs, nw, Up);
// Calculate motion relative to patch velocity
U -= Up;