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BUG: LiquidEvaporation[Boil] - immediately evaporate mass if reached critical condition - mantis #950

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This commit is contained in:
andy
2013-08-09 12:40:31 +01:00
parent ad2c46f7d8
commit e28694fe15
4 changed files with 122 additions and 10 deletions
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60
src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporation/LiquidEvaporation.C
View File

@ -151,6 +151,44 @@ void Foam::LiquidEvaporation<CloudType>::calculate
scalarField& dMassPC
) const
{
// liquid volume fraction
const scalarField X(liquids_.X(Yl));
// immediately evaporate mass that has reached critical condition
if (mag(T - liquids_.Tc(X)) < SMALL)
{
if (debug)
{
WarningIn
(
"void Foam::LiquidEvaporation<CloudType>::calculate"
"("
"const scalar, "
"const label, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalarField&, "
"scalarField&"
") const"
) << "Parcel reached critical conditions: "
<< "evaporating all avaliable mass" << endl;
}
forAll(activeLiquids_, i)
{
const label lid = liqToLiqMap_[i];
dMassPC[lid] = GREAT;
}
return;
}
// construct carrier phase species volume fractions for cell, cellI
const scalarField Xc(calcXc(cellI));
@ -242,9 +280,27 @@ Foam::scalar Foam::LiquidEvaporation<CloudType>::dh
template<class CloudType>
Foam::scalar Foam::LiquidEvaporation<CloudType>::TMax(const scalar pIn) const
Foam::scalar Foam::LiquidEvaporation<CloudType>::Tvap
(
const scalarField& Y
) const
{
return liquids_.TMax(pIn);
const scalarField X(liquids_.X(Y));
return liquids_.Tpt(X);
}
template<class CloudType>
Foam::scalar Foam::LiquidEvaporation<CloudType>::TMax
(
const scalar p,
const scalarField& Y
) const
{
const scalarField X(liquids_.X(Y));
return liquids_.pvInvert(p, X);
}

5
src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporation/LiquidEvaporation.H
View File

@ -131,8 +131,11 @@ public:
const scalar T
) const;
//- Return vapourisation temperature
virtual scalar Tvap(const scalarField& Y) const;
//- Return maximum/limiting temperature
virtual scalar TMax(const scalar pIn) const;
virtual scalar TMax(const scalar p, const scalarField& Y) const;
};

62
src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporationBoil/LiquidEvaporationBoil.C
View File

@ -151,18 +151,53 @@ void Foam::LiquidEvaporationBoil<CloudType>::calculate
scalarField& dMassPC
) const
{
// construct carrier phase species volume fractions for cell, cellI
const scalarField XcMix(calcXc(cellI));
// liquid volume fraction
const scalarField X(liquids_.X(Yl));
// immediately evaporate mass that has reached critical condition
if (mag(T - liquids_.Tc(X)) < SMALL)
{
if (debug)
{
WarningIn
(
"void Foam::LiquidEvaporationBoil<CloudType>::calculate"
"("
"const scalar, "
"const label, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalar, "
"const scalarField&, "
"scalarField&"
") const"
) << "Parcel reached critical conditions: "
<< "evaporating all avaliable mass" << endl;
}
forAll(activeLiquids_, i)
{
const label lid = liqToLiqMap_[i];
dMassPC[lid] = GREAT;
}
return;
}
// droplet surface pressure assumed to surface vapour pressure
scalar ps = liquids_.pv(pc, Ts, X);
// vapour density at droplet surface [kg/m3]
scalar rhos = ps*liquids_.W(X)/(specie::RR*Ts);
// construct carrier phase species volume fractions for cell, cellI
const scalarField XcMix(calcXc(cellI));
// carrier thermo properties
scalar Hsc = 0.0;
scalar Hc = 0.0;
@ -341,12 +376,27 @@ Foam::scalar Foam::LiquidEvaporationBoil<CloudType>::dh
template<class CloudType>
Foam::scalar Foam::LiquidEvaporationBoil<CloudType>::TMax
Foam::scalar Foam::LiquidEvaporationBoil<CloudType>::Tvap
(
const scalar pIn
const scalarField& Y
) const
{
return liquids_.TMax(pIn);
const scalarField X(liquids_.X(Y));
return liquids_.Tpt(X);
}
template<class CloudType>
Foam::scalar Foam::LiquidEvaporationBoil<CloudType>::TMax
(
const scalar p,
const scalarField& Y
) const
{
const scalarField X(liquids_.X(Y));
return liquids_.pvInvert(p, X);
}

5
src/lagrangian/intermediate/submodels/Reacting/PhaseChangeModel/LiquidEvaporationBoil/LiquidEvaporationBoil.H
View File

@ -141,8 +141,11 @@ public:
const scalar T
) const;
//- Return vapourisation temperature
virtual scalar Tvap(const scalarField& Y) const;
//- Return maximum/limiting temperature
virtual scalar TMax(const scalar pIn) const;
virtual scalar TMax(const scalar p, const scalarField& Y) const;
};