9d702d58b5
The near wall distances calculated for use in wall functions and the
corrections applied to near wall cells as part of the meshWave
wall/patch distance method have been made consistent across processor
and cyclic boundaries.
The extent to which these corrections are performed in the meshWave
method is now controllable by an nCorrectors entry. This defaults to 2,
which produces a result rougly equivalent to the previous correction
procedure. A higher level of correction could be specified as follows,
in system/fvSchemes:
wallDist
{
method meshWave;
nCorrectors 3;
}
Corrections replace basic cell-centre-face-centre distances with more
accurate cell-centre-face-polygon calculations in which all the points
and edges of the wall face are taken into account. The number of
correctors represents the number of layers of cells that these
corrections propagate into the mesh from the wall faces in question.
Note that correctors are expensive, and returns diminish as the number
of corrections increase, as the error in the basic calculation reduces
with distance from the wall faces. It is unlikely that more than 2 or
3 correctors would ever be warranted. Indeed, this control is
potentially more useful in reducing the number of corrections to 1 or 0
in order to reduce the computational expense in dynamic mesh cases where
distances are being constantly recomputed.
254 lines
6.8 KiB
C++
254 lines
6.8 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2022 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::wallFace
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Description
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Holds information regarding nearest wall point. Used in wall distance
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calculation.
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SourceFiles
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wallFaceI.H
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\*---------------------------------------------------------------------------*/
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#ifndef wallFace_H
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#define wallFace_H
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#include "pointField.H"
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#include "face.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// Forward declaration of classes
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class polyPatch;
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class polyMesh;
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class transformer;
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// Forward declaration of friend functions and operators
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template<class Derived>
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class WallFaceBase;
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template<class Derived>
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Ostream& operator<<(Ostream&, const WallFaceBase<Derived>&);
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template<class Derived>
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Istream& operator>>(Istream&, WallFaceBase<Derived>&);
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/*---------------------------------------------------------------------------*\
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Class WallFaceBase Declaration
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\*---------------------------------------------------------------------------*/
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template<class Derived>
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class WallFaceBase
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{
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// Private Data
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//- Face points
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pointField points_;
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//- Normal distance (squared) from cell center to face
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scalar distSqr_;
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protected:
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// Protected Member Functions
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//- ...
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template<class TrackingData>
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inline bool update
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(
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const point& pt,
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const WallFaceBase<Derived>& w2,
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const scalar tol,
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TrackingData& td
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);
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public:
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// Constructors
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//- Construct null
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inline WallFaceBase();
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//- Construct from face, distance
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inline WallFaceBase
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(
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const face& f,
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const pointField& points,
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const scalar distSqr
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);
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//- Construct from face, distance
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inline WallFaceBase
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(
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const face& f,
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const pointField& points,
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const point& centre,
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const scalar distSqr
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);
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// Member Functions
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// Access
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inline const pointField& points() const;
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inline pointField& points();
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inline scalar distSqr() const;
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inline scalar& distSqr();
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template<class TrackingData>
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inline scalar dist(TrackingData& td) const;
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// Needed by FaceCellWave
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//- Check whether the WallFaceBase has been changed at all or still
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// contains original (invalid) value.
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template<class TrackingData>
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inline bool valid(TrackingData& td) const;
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//- Check for identical geometrical data. Used for checking
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// consistency across cyclics.
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template<class TrackingData>
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inline bool sameGeometry
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(
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const polyMesh&,
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const WallFaceBase<Derived>&,
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const scalar,
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TrackingData& td
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) const;
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//- Transform across an interface
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template<class TrackingData>
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inline void transform
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(
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const polyPatch& patch,
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const label patchFacei,
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const transformer& transform,
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TrackingData& td
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);
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//- Influence of neighbouring face
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template<class TrackingData>
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inline bool updateCell
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(
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const polyMesh&,
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const label thisCelli,
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const label neighbourFacei,
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const WallFaceBase<Derived>& neighbourInfo,
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const scalar tol,
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TrackingData& td
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);
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//- Influence of neighbouring cell
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template<class TrackingData>
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inline bool updateFace
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(
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const polyMesh&,
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const label thisFacei,
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const label neighbourCelli,
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const WallFaceBase<Derived>& neighbourInfo,
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const scalar tol,
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TrackingData& td
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);
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//- Influence of different value on same face
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template<class TrackingData>
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inline bool updateFace
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(
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const polyMesh&,
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const label thisFacei,
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const WallFaceBase<Derived>& neighbourInfo,
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const scalar tol,
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TrackingData& td
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);
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//- Test equality
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template<class TrackingData>
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inline bool equal
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const WallFaceBase<Derived>&,
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TrackingData& td
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) const;
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// Member Operators
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inline bool operator==(const WallFaceBase<Derived>&) const;
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inline bool operator!=(const WallFaceBase<Derived>&) const;
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// IOstream Operators
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friend Ostream& operator<< <Derived>
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(
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Ostream&,
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const WallFaceBase<Derived>&
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);
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friend Istream& operator>> <Derived>
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(
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Istream&,
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WallFaceBase<Derived>&
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);
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};
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/*---------------------------------------------------------------------------*\
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Class wallFace Declaration
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\*---------------------------------------------------------------------------*/
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class wallFace
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:
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public WallFaceBase<wallFace>
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{
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public:
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using WallFaceBase<wallFace>::WallFaceBase;
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template<class Derived> using type = WallFaceBase<Derived>;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#include "wallFaceI.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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