Merge branch 'feature-axialTurbine_rotating_oneBlade' into 'develop'

INT: cyclicPeriodicAMI: demo case provided by Hakan Nilsson

See merge request Development/openfoam!688
This commit is contained in:
Andrew Heather 2024-06-07 11:29:01 +00:00
commit 440cb83fa7
19 changed files with 8230 additions and 0 deletions

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volVectorField;
location "0";
object U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [ 0 1 -1 0 0 0 0 ];
internalField uniform ( 0 0 -1 );
boundaryField
{
#includeEtc "caseDicts/setConstraintTypes"
GVINLET
{
type fixedValue;
value uniform ( 0 0 -1 );
}
DTOUTLET
{
type zeroGradient;
value $internalField;
}
"(.*HUB|GVBLADE|.*SHROUD)"
{
type fixedValue;
value uniform ( 0 0 0 );
}
"(RUBLADE.*|RUHUB)"
{
type movingWallVelocity;
value uniform ( 0 0 0 );
}
"(GVOUTLET|RUINLET|RUOUTLET|DTINLET)"
{
type cyclicAMI;
value $internalField;
}
/*
"(.*CYCLIC.*)"
{
type cyclicAMI;
value $internalField;
}
*/
}
// ************************************************************************* //

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0";
object epsilon;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [ 0 2 -3 0 0 0 0 ];
internalField uniform 14.855;
boundaryField
{
#includeEtc "caseDicts/setConstraintTypes"
GVINLET
{
type fixedValue;
value $internalField;
}
DTOUTLET
{
type zeroGradient;
}
"(.*HUB|RUBLADE.*|GVBLADE.*|.*SHROUD)"
{
type epsilonWallFunction;
refValue uniform 0;
value $internalField;
Cmu 0.09;
kappa 0.41;
E 9.8;
}
"(GVOUTLET|RUINLET|RUOUTLET|DTINLET)"
{
type cyclicAMI;
value $internalField;
}
/*
"(.*CYCLIC.*)"
{
type cyclicAMI;
value $internalField;
}
*/
}
// ************************************************************************* //

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0";
object k;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [ 0 2 -2 0 0 0 0 ];
internalField uniform 0.375;
boundaryField
{
#includeEtc "caseDicts/setConstraintTypes"
GVINLET
{
type fixedValue;
value $internalField;
}
DTOUTLET
{
type zeroGradient;
}
"(.*HUB|RUBLADE.*|GVBLADE.*|.*SHROUD)"
{
type kqRWallFunction;
value $internalField;
}
"(GVOUTLET|RUINLET|RUOUTLET|DTINLET)"
{
type cyclicAMI;
value $internalField;
}
/*
"(.*CYCLIC.*)"
{
type cyclicAMI;
value $internalField;
}
*/
}
// ************************************************************************* //

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0";
object nut;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 2 -1 0 0 0 0];
internalField uniform 0;
boundaryField
{
#includeEtc "caseDicts/setConstraintTypes"
GVINLET
{
type calculated;
value $internalField;
}
DTOUTLET
{
type calculated;
value $internalField;
}
"(.*HUB|RUBLADE.*|GVBLADE.*|.*SHROUD)"
{
type nutkWallFunction;
value $internalField;
}
"(GVOUTLET|RUINLET|RUOUTLET|DTINLET)"
{
type cyclicAMI;
value $internalField;
}
/*
"(.*CYCLIC.*)"
{
type cyclicAMI;
value $internalField;
}
*/
}
// ************************************************************************* //

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0";
object p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [ 0 2 -2 0 0 0 0 ];
internalField uniform 0;
boundaryField
{
#includeEtc "caseDicts/setConstraintTypes"
GVINLET
{
type zeroGradient;
value $internalField;
}
DTOUTLET
{
type fixedValue;
value $internalField;
}
"(.*HUB|RUBLADE.*|GVBLADE.*|.*SHROUD)"
{
type zeroGradient;
value $internalField;
}
"(GVOUTLET|RUINLET|RUOUTLET|DTINLET)"
{
type cyclicAMI;
value $internalField;
}
/*
"(.*CYCLIC.*)"
{
type cyclicAMI;
value $internalField;
}
*/
}
// ************************************************************************* //

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#!/bin/sh
cd "${0%/*}" || exit # Run from this directory
. ${WM_PROJECT_DIR:?}/bin/tools/CleanFunctions # Tutorial run functions
#------------------------------------------------------------------------------
cleanCase0
rm -rf system/blockMeshDict
rm -rf VTK

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#!/bin/sh
cd "${0%/*}" || exit # Run from this directory
. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions # Tutorial run functions
#------------------------------------------------------------------------------
./Allrun.pre
# Start simulation from scratch
runApplication pimpleFoam
#------------------------------------------------------------------------------

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#!/bin/sh
cd "${0%/*}" || exit # Run from this directory
. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions # Tutorial run functions
#------------------------------------------------------------------------------
# Generate mesh
#- Conformal starting mesh
#m4 < system/blockMeshDict-conformal.m4 > system/blockMeshDict
#- Non-conformal starting mesh
m4 < system/blockMeshDict-non-conformal.m4 > system/blockMeshDict
runApplication blockMesh
# Convert coordinates from cylindrical into Cartesian
runApplication -s cylToCart transformPoints -cylToCart "((0 0 0) (0 0 1) (1 0 0))"
# Final clean-up, setting of boundary file, etc.
rm -rf 0/
runApplication -s cyclicAMI changeDictionary -dict system/changeDictionaryDict_cyclicAMI -noZero -constant
runApplication checkMesh -constant
restore0Dir
# Set up postprocessing
paraFoam -vtk -touch
#------------------------------------------------------------------------------

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- case provided by Hakan Nilsson
- demonstrates:
- meshing in cylindrical coordinates
- use of cyclicPeriodicAMI
- setting of non-default matchTolerance (0.01) to get correct number
of sectors
- using paraview AngularPeriodicFilter
- touch axialTurbine_rotating_oneBlade.foam
- paraview
- File -> Load State -> select 'angPer.pvsm'
- Choose FileName and select the .foam file

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object dynamicMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dynamicFvMesh dynamicMotionSolverFvMesh;
solver solidBody;
solidBodyCoeffs
{
cellZone rotor;
solidBodyMotionFunction rotatingMotion;
rotatingMotionCoeffs
{
origin (0 0 0);
axis (0 0 1);
omega -10; //in rad/sec
}
}
// ************************************************************************* //

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object transportProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
transportModel Newtonian;
nu nu [0 2 -1 0 0 0 0] 1e-05;
// ************************************************************************* //

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object turbulenceProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
simulationType RAS;
//simulationType laminar;
RAS
{
RASModel RNGkEpsilon;
turbulence on;
printCoeffs on;
}
// ************************************************************************* //

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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// General macros to create 2D/extruded-2D meshes
changecom(//)changequote([,])
define(calc, [esyscmd(perl -e 'printf ($1)')])
//define(calc, [esyscmd(echo $1 | bc | tr -d \\n)])
define(VCOUNT, 0)
define(vlabel, [[// ]Vertex $1 = VCOUNT define($1, VCOUNT)define([VCOUNT], incr(VCOUNT))])
define(pi, calc(3.14159265/20))
define(hex2D, hex ($1b $2b $3b $4b $1t $2t $3t $4t))
define(quad2D, ($1b $2b $2t $1t))
define(frontQuad, ($1t $2t $3t $4t))
define(backQuad, ($1b $4b $3b $2b))
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
scale (1 20 1);
// HUB AND SHROUD RADIUS
// Hub radius (m)
define(hr, 0.05)
// Shroud radius (m)
define(sr, 0.1)
// GUIDE VANE REGION GEOMETRY AND MESH PROPERTIES
// Guide vane inlet axial length (m)
define(GVial, 0.1)
// Guide vane axial length (m)
define(GVbal, 0.1)
// Guide vane outlet axial length (m)
define(GVoal, 0.02)
// Number of guide vanes per 360 degrees (integer!)
define(GVnb, 5)
// Number of cells in radial direction at guide vane
define(GVrc, 10)
// Number of cells in tangential direction between guide vanes
define(GVtc, 10)
// Number of cells in axial direction at guide vane inlet
define(GViac, 10)
// Number of cells in axial direction between guide vanes
define(GVbac, 10)
// Number of cells in axial direction at guide vane outlet
define(GVoac, 2)
// RUNNER REGION GEOMETRY AND MESH PROPERTIES
// Runner inlet axial length (m)
define(RUial, 0.02)
// Runner axial length (m)
define(RUal, 0.1)
// Runner outlet axial length (m)
define(RUoal, 0.02)
// Number of runner blades per 360 degrees (integer!)
define(RUnb, 5)
// Number of cells in radial direction in runner
define(RUrc, 10)
// Number of cells in tangential direction between runner blades
define(RUtc, 10)
// Number of cells in axial direction at runner inlet
define(RUiac, 2)
// Number of cells in axial direction between runner blades
define(RUbac, 10)
// Number of cells in axial direction at runner outlet
define(RUoac, 2)
// DRAFT TUBE REGION GEOMETRY AND MESH PROPERTIES
// "Draft tube" axial length (m)
define(DTal, 0.07)
// Number of sections per 360 degrees (integer!)
define(DTns, 5)
// Number of cells in radial direction in "draft tube"
define(DTrc, 10)
// Number of cells in tangential direction in "draft tube"
define(DTtc, 10)
// Number of cells in axial direction in "draft tube"
define(DTac, 7)
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// TANGENTIAL PITCHES (RADIANS)
// Guide vane region
define(GVp, calc(2*pi/GVnb))
// Runner region
define(RUp, calc(2*pi/RUnb))
// Draft tube region
define(DTp, calc(2*pi/DTns))
// TANGENTIAL SHIFTS BETWEEN AXIAL LEVELS (BOTTOM-UP)
// Tangential shift from level DT0 to DT1
define(DTts01, calc(5*DTp))
// Runner region
// Tangential shift from level RU0 to RU1
define(RUts01, calc(-1/10*RUp))
// Tangential shift from level RU1 to RU2
define(RUts12, calc(-4/5*RUp))
// Tangential shift from level RU2 to RU3
define(RUts23, calc(-1/10*RUp))
// Guide vane region
// Tangential shift from level GV0 to GV1
define(GVts01, calc(1/10*GVp))
// Tangential shift from level GV1 to GV2
define(GVts12, calc(1/2*GVp))
// Tangential shift from level GV2 to GV3
define(GVts23, calc(0*GVp))
// AXIAL/TANGENTIAL BASE POINTS FOR EACH LEVEL (BOTTOM-UP):
// (CENTER OF RUNNER SET TO THETA=0, Z=0)
// Draft tube:
define(DTa0, calc(-RUoal-0.5*RUal-DTal)) //Center runner
define(DTt0, calc(-0.5*RUp-(0.5*RUts12)-(0*DTts01))) // Straight draft tube!
define(DTt1, calc(-0.5*RUp-(0.5*RUts12))) //Center runner
// Runner:
define(RUa0, calc(-RUoal-0.5*RUal)) //Center runner
define(RUt0, calc(-0.5*RUp-(0.5*RUts12))) //Center runner
define(RUt1, calc(RUt0+RUts01))
define(RUt2, calc(RUt1+RUts12))
define(RUt3, calc(RUt2+RUts23))
// Guide vane:
define(GVa0, calc(0.5*RUal+RUial)) //Center runner
define(GVt0, calc(-0.5*RUp-(0.5*RUts12)+RUts01+RUts12+RUts23)) //Center runner
define(GVt1, calc(GVt0+GVts01))
define(GVt2, calc(GVt1+GVts12))
define(GVt3, calc(GVt2+GVts23))
vertices //(radial [m], tangential [radians], axial [m])
(
//Guide vane hub:
(hr GVt0 GVa0) vlabel(GV0lb)
(hr calc(GVt0+GVp) GVa0) vlabel(GV0rb)
(hr GVt1 calc(GVa0+GVoal)) vlabel(GV1lb)
(hr calc(GVt1+GVp) calc(GVa0+GVoal)) vlabel(GV1rb)
(hr GVt2 calc(GVa0+GVoal+GVbal)) vlabel(GV2lb)
(hr calc(GVt2+GVp) calc(GVa0+GVoal+GVbal)) vlabel(GV2rb)
(hr GVt3 calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3lb)
(hr calc(GVt3+GVp) calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3rb)
//Guide vane shroud:
(sr GVt0 GVa0) vlabel(GV0lt)
(sr calc(GVt0+GVp) GVa0) vlabel(GV0rt)
(sr GVt1 calc(GVa0+GVoal)) vlabel(GV1lt)
(sr calc(GVt1+GVp) calc(GVa0+GVoal)) vlabel(GV1rt)
(sr GVt2 calc(GVa0+GVoal+GVbal)) vlabel(GV2lt)
(sr calc(GVt2+GVp) calc(GVa0+GVoal+GVbal)) vlabel(GV2rt)
(sr GVt3 calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3lt)
(sr calc(GVt3+GVp) calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3rt)
//Runner hub:
(hr RUt0 RUa0) vlabel(RU0lb)
(hr calc(RUt0+RUp) RUa0) vlabel(RU0rb)
(hr RUt1 calc(RUa0+RUoal)) vlabel(RU1lb)
(hr calc(RUt1+RUp) calc(RUa0+RUoal)) vlabel(RU1rb)
(hr RUt2 calc(RUa0+RUoal+RUal)) vlabel(RU2lb)
(hr calc(RUt2+RUp) calc(RUa0+RUoal+RUal)) vlabel(RU2rb)
(hr RUt3 calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3lb)
(hr calc(RUt3+RUp) calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3rb)
//Runner shroud:
(sr RUt0 RUa0) vlabel(RU0lt)
(sr calc(RUt0+RUp) RUa0) vlabel(RU0rt)
(sr RUt1 calc(RUa0+RUoal)) vlabel(RU1lt)
(sr calc(RUt1+RUp) calc(RUa0+RUoal)) vlabel(RU1rt)
(sr RUt2 calc(RUa0+RUoal+RUal)) vlabel(RU2lt)
(sr calc(RUt2+RUp) calc(RUa0+RUoal+RUal)) vlabel(RU2rt)
(sr RUt3 calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3lt)
(sr calc(RUt3+RUp) calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3rt)
//Draft tube hub:
(hr DTt0 DTa0) vlabel(DT0lb)
(hr calc(DTt0+DTp) DTa0) vlabel(DT0rb)
(hr DTt1 calc(DTa0+DTal)) vlabel(DT1lb)
(hr calc(DTt1+DTp) calc(DTa0+DTal)) vlabel(DT1rb)
//Draft tube shroud:
(sr DTt0 DTa0) vlabel(DT0lt)
(sr calc(DTt0+DTp) DTa0) vlabel(DT0rt)
(sr DTt1 calc(DTa0+DTal)) vlabel(DT1lt)
(sr calc(DTt1+DTp) calc(DTa0+DTal)) vlabel(DT1rt)
);
blocks
(
//Guide vane:
hex2D(GV0l, GV0r, GV1r, GV1l)
(GVtc GVoac GVrc)
simpleGrading (1 1 1)
hex2D(GV1l, GV1r, GV2r, GV2l)
(GVtc GVbac GVrc)
simpleGrading (1 1 1)
hex2D(GV2l, GV2r, GV3r, GV3l)
(GVtc GViac GVrc)
simpleGrading (1 1 1)
//Runner:
hex2D(RU0l, RU0r, RU1r, RU1l)
rotor
(RUtc RUoac RUrc)
simpleGrading (1 1 1)
hex2D(RU1l, RU1r, RU2r, RU2l)
rotor
(RUtc RUbac RUrc)
simpleGrading (1 1 1)
hex2D(RU2l, RU2r, RU3r, RU3l)
rotor
(RUtc RUiac RUrc)
simpleGrading (1 1 1)
//Draft tube:
hex2D(DT0l, DT0r, DT1r, DT1l)
(DTtc DTac DTrc)
simpleGrading (1 1 1)
);
edges // Inappropriate with arc due to coordinate conversion
(
//Runner
spline RU1lt RU2lt
(
(sr calc(RUt1+0.65*(RUt2-(RUt1))) calc(RUa0+RUoal+0.5*RUal))
)
spline RU1lb RU2lb
(
(hr calc(RUt1+0.65*(RUt2-(RUt1))) calc(RUa0+RUoal+0.5*RUal))
)
spline RU1rt RU2rt
(
(sr calc(RUt1+RUp+0.75*(RUt2-(RUt1))) calc(RUa0+RUoal+0.5*RUal))
)
spline RU1rb RU2rb
(
(hr calc(RUt1+RUp+0.75*(RUt2-(RUt1))) calc(RUa0+RUoal+0.5*RUal))
)
//Guide vane
spline GV1lt GV2lt
(
(sr calc(GVt1+0.75*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
spline GV1lb GV2lb
(
(hr calc(GVt1+0.75*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
spline GV1rt GV2rt
(
(sr calc(GVt1+GVp+0.65*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
spline GV1rb GV2rb
(
(hr calc(GVt1+GVp+0.65*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
);
boundary
(
GVINLET
{
type patch;
faces
(
quad2D(GV3r, GV3l)
);
}
GVOUTLET
{
type patch;
faces
(
quad2D(GV0l, GV0r)
);
}
GVCYCLIC1
{
type patch;
faces
(
quad2D(GV1l, GV0l)
quad2D(GV3l, GV2l)
);
}
GVCYCLIC2
{
type patch;
faces
(
quad2D(GV0r, GV1r)
quad2D(GV2r, GV3r)
);
}
GVBLADE
{
type patch;
faces
(
quad2D(GV2l, GV1l)
quad2D(GV1r, GV2r)
);
}
GVHUB
{
type patch;
faces
(
backQuad(GV0l, GV0r, GV1r, GV1l)
backQuad(GV1l, GV1r, GV2r, GV2l)
backQuad(GV2l, GV2r, GV3r, GV3l)
);
}
GVSHROUD
{
type patch;
faces
(
frontQuad(GV0l, GV0r, GV1r, GV1l)
frontQuad(GV1l, GV1r, GV2r, GV2l)
frontQuad(GV2l, GV2r, GV3r, GV3l)
);
}
RUINLET
{
type patch;
faces
(
quad2D(RU3r, RU3l)
);
}
RUOUTLET
{
type patch;
faces
(
quad2D(RU0l, RU0r)
);
}
RUCYCLIC1
{
type patch;
faces
(
quad2D(RU1l, RU0l)
quad2D(RU3l, RU2l)
);
}
RUCYCLIC2
{
type patch;
faces
(
quad2D(RU0r, RU1r)
quad2D(RU2r, RU3r)
);
}
RUBLADE
{
type patch;
faces
(
quad2D(RU2l, RU1l)
quad2D(RU1r, RU2r)
);
}
RUHUB
{
type patch;
faces
(
backQuad(RU0l, RU0r, RU1r, RU1l)
backQuad(RU1l, RU1r, RU2r, RU2l)
backQuad(RU2l, RU2r, RU3r, RU3l)
);
}
RUSHROUD
{
type patch;
faces
(
frontQuad(RU0l, RU0r, RU1r, RU1l)
frontQuad(RU1l, RU1r, RU2r, RU2l)
frontQuad(RU2l, RU2r, RU3r, RU3l)
);
}
DTINLET
{
type patch;
faces
(
quad2D(DT1r, DT1l)
);
}
DTOUTLET
{
type patch;
faces
(
quad2D(DT0l, DT0r)
);
}
DTCYCLIC1
{
type patch;
faces
(
quad2D(DT1l, DT0l)
);
}
DTCYCLIC2
{
type patch;
faces
(
quad2D(DT0r, DT1r)
);
}
DTHUB
{
type patch;
faces
(
backQuad(DT0l, DT0r, DT1r, DT1l)
);
}
DTSHROUD
{
type patch;
faces
(
frontQuad(DT0l, DT0r, DT1r, DT1l)
);
}
);
// ************************************************************************* //

View File

@ -0,0 +1,477 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// General macros to create 2D/extruded-2D meshes
changecom(//)changequote([,])
define(calc, [esyscmd(perl -e 'printf ($1)')])
//define(calc, [esyscmd(echo $1 | bc | tr -d \\n)])
define(VCOUNT, 0)
define(vlabel, [[// ]Vertex $1 = VCOUNT define($1, VCOUNT)define([VCOUNT], incr(VCOUNT))])
define(pi, calc(3.14159265/20))
define(hex2D, hex ($1b $2b $3b $4b $1t $2t $3t $4t))
define(quad2D, ($1b $2b $2t $1t))
define(frontQuad, ($1t $2t $3t $4t))
define(backQuad, ($1b $4b $3b $2b))
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
scale (1 20 1);
// HUB AND SHROUD RADIUS
// Hub radius (m)
define(hr, 0.05)
// Shroud radius (m)
define(sr, 0.1)
// GUIDE VANE REGION GEOMETRY AND MESH PROPERTIES
// Guide vane inlet axial length (m)
define(GVial, 0.04)
// Guide vane axial length (m)
define(GVbal, 0.1)
// Guide vane outlet axial length (m)
define(GVoal, 0.02)
// Number of guide vanes per 360 degrees (integer!)
define(GVnb, 5)
// Number of cells in radial direction at guide vane
define(GVrc, 10)
// Number of cells in tangential direction between guide vanes
define(GVtc, 10)
// Number of cells in axial direction at guide vane inlet
define(GViac, 4)
// Number of cells in axial direction between guide vanes
define(GVbac, 10)
// Number of cells in axial direction at guide vane outlet
define(GVoac, 2)
// RUNNER REGION GEOMETRY AND MESH PROPERTIES
// Runner inlet axial length (m)
define(RUial, 0.02)
// Runner axial length (m)
define(RUal, 0.1)
// Runner outlet axial length (m)
define(RUoal, 0.02)
// Number of runner blades per 360 degrees (integer!)
define(RUnb, 5)
// Number of cells in radial direction in runner
define(RUrc, 10)
// Number of cells in tangential direction between runner blades
define(RUtc, 10)
// Number of cells in axial direction at runner inlet
define(RUiac, 2)
// Number of cells in axial direction between runner blades
define(RUbac, 10)
// Number of cells in axial direction at runner outlet
define(RUoac, 2)
// DRAFT TUBE REGION GEOMETRY AND MESH PROPERTIES
// "Draft tube" axial length (m)
define(DTal, 0.07)
// Number of sections per 360 degrees (integer!)
define(DTns, 5)
// Number of cells in radial direction in "draft tube"
define(DTrc, 10)
// Number of cells in tangential direction in "draft tube"
define(DTtc, 10)
// Number of cells in axial direction in "draft tube"
define(DTac, 7)
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// TANGENTIAL PITCHES (RADIANS)
// Guide vane region
define(GVp, calc(2*pi/GVnb))
// Runner region
define(RUp, calc(2*pi/RUnb))
// Draft tube region
define(DTp, calc(2*pi/DTns))
// TANGENTIAL SHIFTS BETWEEN AXIAL LEVELS (BOTTOM-UP)
// Tangential shift from level DT0 to DT1
define(DTts01, calc(5*DTp))
// Runner region
// Tangential shift from level RU0 to RU1
define(RUts01, calc(-1/10*RUp))
// Tangential shift from level RU1 to RU2
define(RUts12, calc(-4/5*RUp))
// Tangential shift from level RU2 to RU3
define(RUts23, calc(-1/10*RUp))
// Guide vane region
// Tangential shift from level GV0 to GV1
define(GVts01, calc(1/10*GVp))
// Tangential shift from level GV1 to GV2
define(GVts12, calc(1/2*GVp))
// Tangential shift from level GV2 to GV3
define(GVts23, calc(0*GVp))
// AXIAL/TANGENTIAL BASE POINTS FOR EACH LEVEL (BOTTOM-UP):
// (CENTER OF RUNNER SET TO THETA=0, Z=0)
// Draft tube:
define(DTa0, calc(-RUoal-0.5*RUal-DTal)) //Center runner
define(DTt0, calc(-0.5*RUp-(0.5*RUts12)-(0*DTts01))) // Straight draft tube!
define(DTt1, calc(-0.5*RUp-(0.5*RUts12))) //Center runner
// Runner:
define(RUa0, calc(-RUoal-0.5*RUal)) //Center runner
define(RUt0, calc(-0.5*RUp-(0.5*RUts12))) //Center runner
define(RUt1, calc(RUt0+RUts01))
define(RUt2, calc(RUt1+RUts12))
define(RUt3, calc(RUt2+RUts23))
// Guide vane:
define(GVa0, calc(0.5*RUal+RUial)) //Center runner
define(GVt0, calc(-0.5*RUp-(0.5*RUts12)+RUts01+RUts12+RUts23)) //Center runner
define(GVt1, calc(GVt0+GVts01))
define(GVt2, calc(GVt1+GVts12))
define(GVt3, calc(GVt2+GVts23))
// Add tangential twist at RU inlet (3) and outlet (0) at hub (h) and shroud (s)
define(RUt0htw, calc(-2*pi/100))
define(RUt3htw, calc(-2*pi/100))
define(RUt0stw, calc(2*pi/100))
define(RUt3stw, calc(2*pi/100))
// Rotate runner
define(RUrot, calc(2*pi/3))
vertices //(radial [m], tangential [radians], axial [m])
(
//Guide vane hub:
(hr GVt0 GVa0) vlabel(GV0lb)
(hr calc(GVt0+GVp) GVa0) vlabel(GV0rb)
(hr GVt1 calc(GVa0+GVoal)) vlabel(GV1lb)
(hr calc(GVt1+GVp) calc(GVa0+GVoal)) vlabel(GV1rb)
(hr GVt2 calc(GVa0+GVoal+GVbal)) vlabel(GV2lb)
(hr calc(GVt2+GVp) calc(GVa0+GVoal+GVbal)) vlabel(GV2rb)
(hr GVt3 calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3lb)
(hr calc(GVt3+GVp) calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3rb)
//Guide vane shroud:
(sr GVt0 GVa0) vlabel(GV0lt)
(sr calc(GVt0+GVp) GVa0) vlabel(GV0rt)
(sr GVt1 calc(GVa0+GVoal)) vlabel(GV1lt)
(sr calc(GVt1+GVp) calc(GVa0+GVoal)) vlabel(GV1rt)
(sr GVt2 calc(GVa0+GVoal+GVbal)) vlabel(GV2lt)
(sr calc(GVt2+GVp) calc(GVa0+GVoal+GVbal)) vlabel(GV2rt)
(sr GVt3 calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3lt)
(sr calc(GVt3+GVp) calc(GVa0+GVoal+GVbal+GVial)) vlabel(GV3rt)
//Runner hub:
(hr calc(RUt0+RUt0htw+RUrot) RUa0) vlabel(RU0lb)
(hr calc(RUt0+RUp+RUt0htw+RUrot) RUa0) vlabel(RU0rb)
(hr calc(RUt1+RUrot) calc(RUa0+RUoal)) vlabel(RU1lb)
(hr calc(RUt1+RUp+RUrot) calc(RUa0+RUoal)) vlabel(RU1rb)
(hr calc(RUt2+RUrot) calc(RUa0+RUoal+RUal)) vlabel(RU2lb)
(hr calc(RUt2+RUp+RUrot) calc(RUa0+RUoal+RUal)) vlabel(RU2rb)
(hr calc(RUt3+RUt3htw+RUrot) calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3lb)
(hr calc(RUt3+RUp+RUt3htw+RUrot) calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3rb)
//Runner shroud:
(sr calc(RUt0+RUt0stw+RUrot) RUa0) vlabel(RU0lt)
(sr calc(RUt0+RUp+RUt0stw+RUrot) RUa0) vlabel(RU0rt)
(sr calc(RUt1+RUrot) calc(RUa0+RUoal)) vlabel(RU1lt)
(sr calc(RUt1+RUp+RUrot) calc(RUa0+RUoal)) vlabel(RU1rt)
(sr calc(RUt2+RUrot) calc(RUa0+RUoal+RUal)) vlabel(RU2lt)
(sr calc(RUt2+RUp+RUrot) calc(RUa0+RUoal+RUal)) vlabel(RU2rt)
(sr calc(RUt3+RUt3stw+RUrot) calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3lt)
(sr calc(RUt3+RUp+RUt3stw+RUrot) calc(RUa0+RUoal+RUal+RUial)) vlabel(RU3rt)
//Draft tube hub:
(hr DTt0 DTa0) vlabel(DT0lb)
(hr calc(DTt0+DTp) DTa0) vlabel(DT0rb)
(hr DTt1 calc(DTa0+DTal)) vlabel(DT1lb)
(hr calc(DTt1+DTp) calc(DTa0+DTal)) vlabel(DT1rb)
//Draft tube shroud:
(sr DTt0 DTa0) vlabel(DT0lt)
(sr calc(DTt0+DTp) DTa0) vlabel(DT0rt)
(sr DTt1 calc(DTa0+DTal)) vlabel(DT1lt)
(sr calc(DTt1+DTp) calc(DTa0+DTal)) vlabel(DT1rt)
);
blocks
(
//Guide vane:
hex2D(GV0l, GV0r, GV1r, GV1l)
(GVtc GVoac GVrc)
simpleGrading (1 1 1)
hex2D(GV1l, GV1r, GV2r, GV2l)
(GVtc GVbac GVrc)
simpleGrading (1 1 1)
hex2D(GV2l, GV2r, GV3r, GV3l)
(GVtc GViac GVrc)
simpleGrading (1 1 1)
//Runner:
hex2D(RU0l, RU0r, RU1r, RU1l)
rotor
(RUtc RUoac RUrc)
simpleGrading (1 1 1)
hex2D(RU1l, RU1r, RU2r, RU2l)
rotor
(RUtc RUbac RUrc)
simpleGrading (1 1 1)
hex2D(RU2l, RU2r, RU3r, RU3l)
rotor
(RUtc RUiac RUrc)
simpleGrading (1 1 1)
//Draft tube:
hex2D(DT0l, DT0r, DT1r, DT1l)
(DTtc DTac DTrc)
simpleGrading (1 1 1)
);
edges // Inappropriate with arc due to coordinate conversion
(
//Runner
spline RU1lt RU2lt
(
(sr calc(RUt1+0.65*(RUt2-(RUt1))+RUrot) calc(RUa0+RUoal+0.5*RUal))
)
spline RU1lb RU2lb
(
(hr calc(RUt1+0.65*(RUt2-(RUt1))+RUrot) calc(RUa0+RUoal+0.5*RUal))
)
spline RU1rt RU2rt
(
(sr calc(RUt1+RUp+0.75*(RUt2-(RUt1))+RUrot) calc(RUa0+RUoal+0.5*RUal))
)
spline RU1rb RU2rb
(
(hr calc(RUt1+RUp+0.75*(RUt2-(RUt1))+RUrot) calc(RUa0+RUoal+0.5*RUal))
)
//Guide vane
spline GV1lt GV2lt
(
(sr calc(GVt1+0.75*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
spline GV1lb GV2lb
(
(hr calc(GVt1+0.75*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
spline GV1rt GV2rt
(
(sr calc(GVt1+GVp+0.65*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
spline GV1rb GV2rb
(
(hr calc(GVt1+GVp+0.65*(GVt2-(GVt1))) calc(GVa0+GVoal+0.5*GVbal))
)
);
boundary
(
GVINLET
{
type patch;
faces
(
quad2D(GV3r, GV3l)
);
}
GVOUTLET
{
type patch;
faces
(
quad2D(GV0l, GV0r)
);
}
GVCYCLIC1
{
type patch;
faces
(
quad2D(GV1l, GV0l)
quad2D(GV3l, GV2l)
);
}
GVCYCLIC2
{
type patch;
faces
(
quad2D(GV0r, GV1r)
quad2D(GV2r, GV3r)
);
}
GVBLADE
{
type patch;
faces
(
quad2D(GV2l, GV1l)
quad2D(GV1r, GV2r)
);
}
GVHUB
{
type patch;
faces
(
backQuad(GV0l, GV0r, GV1r, GV1l)
backQuad(GV1l, GV1r, GV2r, GV2l)
backQuad(GV2l, GV2r, GV3r, GV3l)
);
}
GVSHROUD
{
type patch;
faces
(
frontQuad(GV0l, GV0r, GV1r, GV1l)
frontQuad(GV1l, GV1r, GV2r, GV2l)
frontQuad(GV2l, GV2r, GV3r, GV3l)
);
}
RUINLET
{
type patch;
faces
(
quad2D(RU3r, RU3l)
);
}
RUOUTLET
{
type patch;
faces
(
quad2D(RU0l, RU0r)
);
}
RUCYCLIC1
{
type patch;
faces
(
quad2D(RU1l, RU0l)
quad2D(RU3l, RU2l)
);
}
RUCYCLIC2
{
type patch;
faces
(
quad2D(RU0r, RU1r)
quad2D(RU2r, RU3r)
);
}
RUBLADE
{
type patch;
faces
(
quad2D(RU2l, RU1l)
quad2D(RU1r, RU2r)
);
}
RUHUB
{
type patch;
faces
(
backQuad(RU0l, RU0r, RU1r, RU1l)
backQuad(RU1l, RU1r, RU2r, RU2l)
backQuad(RU2l, RU2r, RU3r, RU3l)
);
}
RUSHROUD
{
type patch;
faces
(
frontQuad(RU0l, RU0r, RU1r, RU1l)
frontQuad(RU1l, RU1r, RU2r, RU2l)
frontQuad(RU2l, RU2r, RU3r, RU3l)
);
}
DTINLET
{
type patch;
faces
(
quad2D(DT1r, DT1l)
);
}
DTOUTLET
{
type patch;
faces
(
quad2D(DT0l, DT0r)
);
}
DTCYCLIC1
{
type patch;
faces
(
quad2D(DT1l, DT0l)
);
}
DTCYCLIC2
{
type patch;
faces
(
quad2D(DT0r, DT1r)
);
}
DTHUB
{
type patch;
faces
(
backQuad(DT0l, DT0r, DT1r, DT1l)
);
}
DTSHROUD
{
type patch;
faces
(
frontQuad(DT0l, DT0r, DT1r, DT1l)
);
}
);
// ************************************************************************* //

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@ -0,0 +1,209 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object changeDictionaryDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
boundary
{
GVINLET
{
type patch;
inGroups 1(inlet);
}
GVCYCLIC1
{
type cyclicAMI;
inGroups 1(cyclicAMI);
matchTolerance 0.0001;
transform rotational;
rotationAxis (0 0 1);
rotationCentre (0 0 0);
rotationAngle 72;
neighbourPatch GVCYCLIC2;
AMIMethod faceAreaWeightAMI;
restartUncoveredSourceFace 1;
}
GVCYCLIC2
{
type cyclicAMI;
inGroups 1(cyclicAMI);
matchTolerance 0.0001;
transform rotational;
rotationAxis (0 0 1);
rotationCentre (0 0 0);
rotationAngle -72;
neighbourPatch GVCYCLIC1;
AMIMethod faceAreaWeightAMI;
restartUncoveredSourceFace 1;
}
GVBLADE
{
type wall;
inGroups 1(blades);
closedSolidBodyMotion false;
}
GVHUB
{
type wall;
inGroups 1(hub);
closedSolidBodyMotion false;
}
GVSHROUD
{
type wall;
inGroups 1(shroud);
closedSolidBodyMotion false;
}
GVOUTLET
{
type cyclicPeriodicAMI;
inGroups 2(cyclicAMI upstreamRSIs);
matchTolerance 0.01;
transform unknown;
neighbourPatch RUINLET;
periodicPatch RUCYCLIC1;
AMIMethod faceAreaWeightAMI;
requireMatch 0;
restartUncoveredSourceFace 1;
maxIter 4;
}
RUINLET
{
type cyclicPeriodicAMI;
inGroups 2(cyclicAMI downstreamRSIs);
matchTolerance 0.01;
transform unknown;
neighbourPatch GVOUTLET;
periodicPatch RUCYCLIC1;
AMIMethod faceAreaWeightAMI;
requireMatch 0;
restartUncoveredSourceFace 1;
maxIter 4;
}
RUCYCLIC1
{
type cyclicAMI;
inGroups 1(cyclicAMI);
matchTolerance 0.0001;
transform rotational;
neighbourPatch RUCYCLIC2;
rotationAxis (0 0 1);
rotationCentre (0 0 0);
rotationAngle 72;
AMIMethod faceAreaWeightAMI;
restartUncoveredSourceFace 1;
}
RUCYCLIC2
{
type cyclicAMI;
inGroups 1(cyclicAMI);
matchTolerance 0.0001;
transform rotational;
neighbourPatch RUCYCLIC1;
rotationAxis (0 0 1);
rotationCentre (0 0 0);
rotationAngle -72;
AMIMethod faceAreaWeightAMI;
restartUncoveredSourceFace 1;
}
RUBLADE
{
type wall;
inGroups 1(blades);
closedSolidBodyMotion false;
}
RUHUB
{
type wall;
inGroups 1(hub);
closedSolidBodyMotion false;
}
RUSHROUD
{
type wall;
inGroups 1(shroud);
closedSolidBodyMotion false;
}
RUOUTLET
{
type cyclicPeriodicAMI;
inGroups 2(cyclicAMI upstreamRSIs);
matchTolerance 0.01;
transform unknown;
neighbourPatch DTINLET;
periodicPatch RUCYCLIC1;
AMIMethod faceAreaWeightAMI;
requireMatch 0;
restartUncoveredSourceFace 1;
maxIter 4;
}
DTINLET
{
type cyclicPeriodicAMI;
inGroups 2(cyclicAMI downstreamRSIs);
matchTolerance 0.01;
transform unknown;
neighbourPatch RUOUTLET;
periodicPatch RUCYCLIC1;
AMIMethod faceAreaWeightAMI;
requireMatch 0;
restartUncoveredSourceFace 1;
maxIter 4;
}
DTOUTLET
{
type patch;
inGroups 1(outlet);
}
DTCYCLIC1
{
type cyclicAMI;
inGroups 1(cyclicAMI);
matchTolerance 0.0001;
transform rotational;
neighbourPatch DTCYCLIC2;
rotationAxis (0 0 1);
rotationCentre (0 0 0);
rotationAngle 72;
AMIMethod faceAreaWeightAMI;
restartUncoveredSourceFace 1;
}
DTCYCLIC2
{
type cyclicAMI;
inGroups 1(cyclicAMI);
matchTolerance 0.0001;
transform rotational;
neighbourPatch DTCYCLIC1;
rotationAxis (0 0 1);
rotationCentre (0 0 0);
rotationAngle -72;
AMIMethod faceAreaWeightAMI;
restartUncoveredSourceFace 1;
}
DTHUB
{
type wall;
inGroups 1(hub);
closedSolidBodyMotion false;
}
DTSHROUD
{
type wall;
inGroups 1(shroud);
closedSolidBodyMotion false;
}
}
// ************************************************************************* //

View File

@ -0,0 +1,55 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
application pimpleFoam;
startFrom startTime;
startTime 0;
stopAt endTime;
endTime 0.6283; //One rotation
//endTime 1.2566; //Two rotations
deltaT 0.00175;//Approx 1 degree per time step
writeControl timeStep;
writeInterval 10;//Every 10 degrees
purgeWrite 0;
writeFormat ascii;
writePrecision 6;
timeFormat general;
timePrecision 6;
runTimeModifiable yes;
adjustTimeStep no;
DebugSwitches
{
//cyclicPeriodicAMI 5;
//cyclicAMI 5;
//cyclic 5;
}
// ************************************************************************* //

View File

@ -0,0 +1,55 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object fvSchemes;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
ddtSchemes
{
default Euler;
}
gradSchemes
{
default Gauss linear;
grad(p) Gauss linear;
grad(U) Gauss linear;
}
divSchemes
{
default none;
div(phi,U) Gauss linearUpwindV grad(U);
div(phi,k) Gauss linearUpwind default;
div(phi,epsilon) Gauss linearUpwind default;
div((nuEff*dev(T(grad(U))))) Gauss linear;
div((nuEff*dev2(T(grad(U))))) Gauss linear;
}
laplacianSchemes
{
default Gauss linear corrected;
}
interpolationSchemes
{
default linear;
}
snGradSchemes
{
default corrected;
}
// ************************************************************************* //

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@ -0,0 +1,81 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v2406 |
| \\ / A nd | Website: www.openfoam.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object fvSolution;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
solvers
{
"(p|pFinal)"
{
solver PBiCGStab;
preconditioner FDIC;
tolerance 1e-08;
relTol 0.05;
}
U
{
solver PBiCGStab;
preconditioner DILU;
tolerance 1e-07;
relTol 0.1;
}
UFinal
{
$U;
relTol 0;
}
k
{
solver PBiCGStab;
preconditioner DILU;
tolerance 1e-07;
relTol 0.1;
}
epsilon
{
solver PBiCGStab;
preconditioner DILU;
tolerance 1e-07;
relTol 0.1;
}
"(k|epsilon)Final"
{
solver PBiCGStab;
preconditioner DILU;
tolerance 1e-07;
relTol 0;
}
}
PIMPLE
{
correctPhi no;
nOuterCorrectors 10;
nCorrectors 1;
nNonOrthogonalCorrectors 1;
}
relaxationFactors
{
p 0.3;
U 0.7;
UFinal 0.7; // To avoid sudden increase in pressure residual
k 0.7;
epsilon 0.7;
}
// ************************************************************************* //