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BUG: Fixing Href for hPolynomialThermo.

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Tref, Href , Sref and Pref are optional inputs to set the enthalpy
at Href for Tref. Pref is needed for the departure function EoS::H
This commit is contained in:
sergio
2021-12-10 10:25:07 +00:00
committed by Andrew Heather
parent 13b1417710
commit f309319c06
2 changed files with 28 additions and 7 deletions
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21
src/thermophysicalModels/specie/thermo/hPolynomial/hPolynomialThermo.C
View File

@ -6,7 +6,7 @@
\\/ M anipulation | \\/ M anipulation |
------------------------------------------------------------------------------- -------------------------------------------------------------------------------
Copyright (C) 2011-2017 OpenFOAM Foundation Copyright (C) 2011-2017 OpenFOAM Foundation
Copyright (C) 2020 OpenCFD Ltd. Copyright (C) 2020-2021 OpenCFD Ltd.
------------------------------------------------------------------------------- -------------------------------------------------------------------------------
License License
This file is part of OpenFOAM. This file is part of OpenFOAM.
@ -41,17 +41,22 @@ Foam::hPolynomialThermo<EquationOfState, PolySize>::hPolynomialThermo
Hf_(dict.subDict("thermodynamics").get<scalar>("Hf")), Hf_(dict.subDict("thermodynamics").get<scalar>("Hf")),
Sf_(dict.subDict("thermodynamics").get<scalar>("Sf")), Sf_(dict.subDict("thermodynamics").get<scalar>("Sf")),
CpCoeffs_(dict.subDict("thermodynamics").lookup(coeffsName("Cp"))), CpCoeffs_(dict.subDict("thermodynamics").lookup(coeffsName("Cp"))),
Tref_(dict.subDict("thermodynamics").getOrDefault<scalar>("Tref", Tstd)),
Href_(dict.subDict("thermodynamics").getOrDefault<scalar>("Href", 0)),
Sref_(dict.subDict("thermodynamics").getOrDefault<scalar>("Sref", 0)),
Pref_(dict.subDict("thermodynamics").getOrDefault<scalar>("Pref", Pstd)),
hCoeffs_(), hCoeffs_(),
sCoeffs_() sCoeffs_()
{ {
hCoeffs_ = CpCoeffs_.integral(); hCoeffs_ = CpCoeffs_.integral();
sCoeffs_ = CpCoeffs_.integralMinus1(); sCoeffs_ = CpCoeffs_.integralMinus1();
// Offset h poly so that it is relative to the enthalpy at Tref
hCoeffs_[0] +=
Href_ - hCoeffs_.value(Tref_) - EquationOfState::H(Pstd, Tref_);
// Offset h poly so that it is relative to the enthalpy at Tstd // Offset s poly so that it is relative to the entropy at Tref
hCoeffs_[0] += Hf_ - hCoeffs_.value(Tstd); sCoeffs_[0] +=
Sref_ - sCoeffs_.value(Tref_) - EquationOfState::S(Pstd, Tref_);
// Offset s poly so that it is relative to the entropy at Tstd
sCoeffs_[0] += Sf_ - sCoeffs_.value(Tstd);
} }
@ -70,6 +75,10 @@ void Foam::hPolynomialThermo<EquationOfState, PolySize>::write
os.beginBlock("thermodynamics"); os.beginBlock("thermodynamics");
os.writeEntry("Hf", Hf_); os.writeEntry("Hf", Hf_);
os.writeEntry("Sf", Sf_); os.writeEntry("Sf", Sf_);
os.writeEntry("Tref", Tref_);
os.writeEntry("Hsref", Href_);
os.writeEntry("Sref", Sref_);
os.writeEntry("Pref", Pref_);
os.writeEntry(coeffsName("Cp"), CpCoeffs_); os.writeEntry(coeffsName("Cp"), CpCoeffs_);
os.endBlock(); os.endBlock();
} }

14
src/thermophysicalModels/specie/thermo/hPolynomial/hPolynomialThermo.H
View File

@ -6,7 +6,7 @@
\\/ M anipulation | \\/ M anipulation |
------------------------------------------------------------------------------- -------------------------------------------------------------------------------
Copyright (C) 2011-2017 OpenFOAM Foundation Copyright (C) 2011-2017 OpenFOAM Foundation
Copyright (C) 2020 OpenCFD Ltd. Copyright (C) 2020-2021 OpenCFD Ltd.
------------------------------------------------------------------------------- -------------------------------------------------------------------------------
License License
This file is part of OpenFOAM. This file is part of OpenFOAM.
@ -141,6 +141,18 @@ class hPolynomialThermo
//- Specific heat at constant pressure polynomial coeffs //- Specific heat at constant pressure polynomial coeffs
Polynomial<PolySize> CpCoeffs_; Polynomial<PolySize> CpCoeffs_;
//- Reference temperature
scalar Tref_;
//- Reference enthalphy
scalar Href_;
//- Reference entropy
scalar Sref_;
//- Reference pressure
scalar Pref_;
//- Enthalpy polynomial coeffs - derived from cp [J/kg] //- Enthalpy polynomial coeffs - derived from cp [J/kg]
// NOTE: relative to Tstd // NOTE: relative to Tstd
typename Polynomial<PolySize>::intPolyType hCoeffs_; typename Polynomial<PolySize>::intPolyType hCoeffs_;