zhyang-dev/OpenFOAM-5.x
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

alphatWallBoilingWallFunctionFvPatchScalarField: Updated to compile SP

Browse Source
This commit is contained in:
Henry Weller
2015-11-29 21:40:16 +00:00
parent 69f0a5e316
commit a09fc00ae4
1 changed files with 16 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
applications/solvers/multiphase/reactingEulerFoam/reactingTwoPhaseEulerFoam/twoPhaseCompressibleTurbulenceModels/derivedFvPatchFields/alphatWallBoilingWallFunction/alphatWallBoilingWallFunctionFvPatchScalarField.C
View File

@ -259,8 +259,8 @@ void alphatWallBoilingWallFunctionFvPatchScalarField::updateCoeffs()
// Liquid temperature at y+=250 is estimated from logarithmic
// thermal wall function (Koncar, Krepper & Egorov, 2005)
scalarField Tplus_y250(Prt_*(Foam::log(E_*250)/kappa_ + P));
scalarField Tplus(Prt_*(Foam::log(E_*yPlus)/kappa_ + P));
scalarField Tplus_y250(Prt_*(log(E_*250)/kappa_ + P));
scalarField Tplus(Prt_*(log(E_*yPlus)/kappa_ + P));
scalarField Tl(Tw - (Tplus_y250/Tplus)*(Tw - Tc));
Tl = max(Tc - 40, min(Tc, Tl));
@ -268,39 +268,42 @@ void alphatWallBoilingWallFunctionFvPatchScalarField::updateCoeffs()
// Reformulation of Lemmert & Chawla (Egorov & Menter, 2004)
const scalarField N
(
0.8*9.922e5*Foam::pow(max(0.0, (Tw - Tsatw)/10), 1.805)
0.8*9.922e5*pow(max((Tw - Tsatw)/10, scalar(0)), 1.805)
);
// Bubble departure diameter:
// Tolubinski and Kostanchuk (1970)
const scalarField Tsub(max(0.0, Tsatw - Tl));
const scalarField Tsub(max(Tsatw - Tl, scalar(0)));
const scalarField Ddep
(
max(1e-6, min(0.0006*Foam::exp(-Tsub/45), 0.0014))
max(min(0.0006*exp(-Tsub/45), scalar(0.0014)), scalar(1e-6))
);
// Bubble departure frequency:
// Cole (1960)
const scalarField F
(
sqrt(4*mag(g).value()*(max(0.1, rhoc - rhoVaporp))/(3*Ddep*rhow))
sqrt
(
4*mag(g).value()*(max(rhoc - rhoVaporp, scalar(0.1)))/(3*Ddep*rhow)
)
);
// Area fractions:
// Del Valle & Kenning (1985)
const scalarField Ja(rhoc*Cpw*Tsub/(rhoVaporp*L));
const scalarField Al(4.8*Foam::exp(-Ja/80));
const scalarField Al(4.8*exp(-Ja/80));
// Liquid phase fraction at the wall
const scalarField liquidw(liquid.boundaryField()[patchi]);
// Damp boiling at high void fractions.
const scalarField W(min(1.,liquidw/0.2));
const scalarField W(min(liquidw/0.2, scalar(0.1)));
const scalarField A2(W*min(M_PI*sqr(Ddep)*N*Al/4, 1.0));
const scalarField A1(max(1e-4, 1 - A2));
const scalarField A2E(W*min(M_PI*sqr(Ddep)*N*Al/4, 5.0));
const scalarField A2(W*min(M_PI*sqr(Ddep)*N*Al/4, scalar(1)));
const scalarField A1(max(1 - A2, scalar(1e-4)));
const scalarField A2E(W*min(M_PI*sqr(Ddep)*N*Al/4, scalar(5)));
// Wall evaporation heat flux [kg/s3 = J/m2s]
const scalarField Qe((1.0/6.0)*A2E*Ddep*rhoVaporw*F*L);
@ -318,7 +321,7 @@ void alphatWallBoilingWallFunctionFvPatchScalarField::updateCoeffs()
);
// Quenching heat flux
const scalarField Qq(A2*hQ*max(0.0, Tw - Tl));
const scalarField Qq(A2*hQ*max(Tw - Tl, scalar(0)));
// Convective heat flux
alphatConv_ = calcAlphat(alphatConv_);
@ -329,7 +332,7 @@ void alphatWallBoilingWallFunctionFvPatchScalarField::updateCoeffs()
operator==
(
A1*alphatConv_ + (Qq + Qe)/max(liquidw*hew.snGrad(), 1e-16)
A1*alphatConv_ + (Qq + Qe)/max(liquidw*hew.snGrad(), scalar(1e-16))
);
if(debug)