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A thermal wall function for simulation of subcooled nucleate wall boiling with runtime selctable submodels for: More...
Public Types | |
| enum | phaseType { vaporPhase, liquidPhase } |
| Enumeration listing the possible operational modes. More... | |
Additional Inherited Members | |
 Protected Member Functions inherited from alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField | |
| void | checkType () |
| Check the type of the patch. More... | |
| tmp< scalarField > | Psmooth (const scalarField &Prat) const |
| 'P' function More... | |
| tmp< scalarField > | yPlusTherm (const scalarField &P, const scalarField &Prat) const |
| Calculate y+ at the edge of the thermal laminar sublayer. More... | |
| tmp< scalarField > | calcAlphat (const scalarField &prevAlphat) const |
| Update turbulent thermal diffusivity. More... | |
| Protected Attributes inherited from alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField | |
| scalar | Prt_ |
| Turbulent Prandtl number. More... | |
| scalar | Cmu_ |
| Cmu coefficient. More... | |
| scalar | kappa_ |
| Von Karman constant. More... | |
| scalar | E_ |
| E coefficient. More... | |
| Protected Attributes inherited from alphatPhaseChangeWallFunctionFvPatchScalarField | |
| scalarField | dmdt_ |
| Rate of phase-change. More... | |
| scalarField | mDotL_ |
| Latent heat of the phase-change. More... | |
| Static Protected Attributes inherited from alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField | |
| static scalar | maxExp_ |
| static scalar | tolerance_ |
| static label | maxIters_ |
A thermal wall function for simulation of subcooled nucleate wall boiling with runtime selctable submodels for:
- wall heat flux partitioning model
Implements a version of the well-known RPI wall boiling model (Kurul & Podowski, 1991). The model implementation is similar to the model described by Peltola & Pättikangas (2012) but has been extended with the wall heat flux partitioning models.
References:
"On the modeling of multidimensional effects in boiling channels"
Kurul, N., Podowski, M.Z.,
ANS Proceedings, National Heat Transfer Conference,
Minneapolis, Minnesota, USA, July 28-31, 1991,
ISBN: 0-89448-162-1, pp. 30-40
"Development and validation of a boiling model for OpenFOAM
multiphase solver"
Peltola, J., Pättikangas, T.J.H.,
CFD4NRS-4 Conference Proceedings, paper 59,
Daejeon, Korea, September 10-12 2012
| Property | Description | Required | Default value |
|---|---|---|---|
phaseType | 'vapor' or 'liquid' | yes | |
relax | wall boiling model relaxation | yes | |
Prt | inherited from alphatPhaseChangeJayatillekeWallFunction | ||
Cmu | inherited from alphatPhaseChangeJayatillekeWallFunction | ||
kappa | inherited from alphatPhaseChangeJayatillekeWallFunction | ||
E | inherited from alphatPhaseChangeJayatillekeWallFunction | ||
dmdt | phase change mass flux | yes | |
value | initial alphat value | yes | |
if phaseType 'vapor':
yes
if phaseType 'liquid':
yes
yes
departureDiamModel
yes
departureFreqModel
yes
NOTE: Runtime selectabale submodels may require model specific entries
Example usage:
hotWall
{
type compressible::alphatWallBoiling2WallFunction;
phaseType liquid;
Prt 0.85;
Cmu 0.09;
kappa 0.41;
E 9.8;
relax 0.001;
dmdt uniform 0;
partitioningModel
{
type Lavieville;
alphaCrit 0.2;
}
nucleationSiteModel
{
type LemmertChawla;
}
departureDiamModel
{
type TolubinskiKostanchuk;
}
departureFreqModel
{
type Cole;
}
value uniform 0.01;Definition at line 215 of file alphatWallBoilingWallFunctionFvPatchScalarField.H.
| enum phaseType |
Enumeration listing the possible operational modes.
| Enumerator | |
|---|---|
| vaporPhase | |
| liquidPhase | |
Definition at line 224 of file alphatWallBoilingWallFunctionFvPatchScalarField.H.
| alphatWallBoilingWallFunctionFvPatchScalarField | ( | const fvPatch & | , |
| const DimensionedField< scalar, volMesh > & | |||
| ) |
Construct from patch and internal field.
Referenced by alphatWallBoilingWallFunctionFvPatchScalarField::clone().
| alphatWallBoilingWallFunctionFvPatchScalarField | ( | const fvPatch & | , |
| const DimensionedField< scalar, volMesh > & | , | ||
| const dictionary & | |||
| ) |
Construct from patch, internal field and dictionary.
| alphatWallBoilingWallFunctionFvPatchScalarField | ( | const alphatWallBoilingWallFunctionFvPatchScalarField & | , |
| const fvPatch & | , | ||
| const DimensionedField< scalar, volMesh > & | , | ||
| const fvPatchFieldMapper & | |||
| ) |
Construct by mapping given.
alphatWallBoilingWallFunctionFvPatchScalarField onto a new patch
| alphatWallBoilingWallFunctionFvPatchScalarField | ( | const alphatWallBoilingWallFunctionFvPatchScalarField & | ) |
Construct as copy.
| alphatWallBoilingWallFunctionFvPatchScalarField | ( | const alphatWallBoilingWallFunctionFvPatchScalarField & | , |
| const DimensionedField< scalar, volMesh > & | |||
| ) |
Construct as copy setting internal field reference.
| TypeName | ( | "compressible::alphatWallBoilingWallFunction" | ) |
Runtime type information.
|
inlinevirtual |
Construct and return a clone.
Reimplemented from alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField.
Definition at line 314 of file alphatWallBoilingWallFunctionFvPatchScalarField.H.
References alphatWallBoilingWallFunctionFvPatchScalarField::alphatWallBoilingWallFunctionFvPatchScalarField().
|
inlinevirtual |
Construct and return a clone setting internal field reference.
Reimplemented from alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField.
Definition at line 331 of file alphatWallBoilingWallFunctionFvPatchScalarField.H.
References alphatWallBoilingWallFunctionFvPatchScalarField::alphatWallBoilingWallFunctionFvPatchScalarField().
|
inline |
Return the departure diameter field.
Definition at line 345 of file alphatWallBoilingWallFunctionFvPatchScalarField.H.
|
inline |
Return the quenching surface heat flux [W/m2].
Definition at line 351 of file alphatWallBoilingWallFunctionFvPatchScalarField.H.
|
inline |
Return the evaporation surface heat flux [W/m2].
Definition at line 357 of file alphatWallBoilingWallFunctionFvPatchScalarField.H.
References alphatPhaseChangeWallFunctionFvPatchScalarField::mDotL_, alphatWallBoilingWallFunctionFvPatchScalarField::updateCoeffs(), and alphatWallBoilingWallFunctionFvPatchScalarField::write().
|
virtual |
Update the coefficients associated with the patch field.
Reimplemented from alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField.
Referenced by alphatWallBoilingWallFunctionFvPatchScalarField::qe().
|
virtual |
Write.
Reimplemented from alphatPhaseChangeJayatillekeWallFunctionFvPatchScalarField.
Referenced by alphatWallBoilingWallFunctionFvPatchScalarField::qe().
1.8.13