thermoCoupleProbes.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2016-2020 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::functionObjects::thermoCoupleProbes
 
Group
    grpUtilitiesFunctionObjects
 
Description
    Sample probe for temperature using a thermocouple.
 
    Uses the correlation:
 
    \f[
        Nu = 2.0 + \left(0.4 Re^{0.5} + 0.06 Re^{2/3}\right)*Pr^{0.4}
    \f]
 
Usage
    Example of function object specification:
    \verbatim
    probes
    {
        type            thermoCoupleProbes;
        libs            (utilityFunctionObjects);
        writeControl    timeStep;
        writeInterval   1;
 
        solver          rodas23;
        absTol          1e-12;
        relTol          1e-8;
 
        interpolationScheme cellPoint;
 
        // thermocouple properties
        rho             8908;
        Cp              440;
        d               1e-3;
        epsilon         0.85;
 
        radiationField  G;
 
        probeLocations
        (
            (0.5 0.5 0.5)
        );
        fields
        (
            T
        );
    }
    \endverbatim
 
 
SourceFiles
    thermoCoupleProbes.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef functionObjects_thermoCoupleProbes_H
#define functionObjects_thermoCoupleProbes_H
 
#include "probes.H"
#include "ODESystem.H"
#include "ODESolver.H"
#include "basicThermo.H"
#include "fluidThermo.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionObjects
{
 
/*---------------------------------------------------------------------------*\
                     Class thermoCoupleProbes Declaration
\*---------------------------------------------------------------------------*/
 
class thermoCoupleProbes
:
    public probes,
    public ODESystem
{
protected:
 
    // Protected data
 
        //- Thermocouple density
        scalar rho_;
 
        //- Thermocouple heat capacity
        scalar Cp_;
 
        //- Thermocouple diameter
        scalar d_;
 
        //- Thermocouple emissivity
        scalar epsilon_;
 
        //- Name of the velocity field
        word UName_;
 
        //- Name of the incident radiation field
        word radiationFieldName_;
 
         //- Fluid thermo reference
        const fluidThermo& thermo_;
 
        //- ODESolver
        autoPtr<ODESolver> odeSolver_;
 
        //- Cached thermocouple temperature
        scalarField Ttc_;
 
 
    // Protected Member Functions
 
        //- Sample and write a particular volume field
        template<class Type>
        void sampleAndWrite
        (
            const GeometricField<Type, fvPatchField, volMesh>&
        );
 
 
private:
 
        //- No copy construct
        thermoCoupleProbes(const thermoCoupleProbes&) = delete;
 
        //- No copy assignment
        void operator=(const thermoCoupleProbes&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("thermoCoupleProbes");
 
 
    // Constructors
 
        //- Construct for given objectRegistry and dictionary.
        //  Allow the possibility to load fields from files
        thermoCoupleProbes
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict,
            const bool loadFromFiles = false,
            const bool readFields = true
        );
 
 
    //- Destructor
    virtual ~thermoCoupleProbes();
 
 
    // ODE functions (overriding abstract functions in ODE.H)
 
    //- Number of ODE's to solve
    virtual label nEqns() const;
 
    virtual void derivatives
    (
        const scalar x,
        const scalarField& y,
        scalarField& dydx
    ) const;
 
    virtual void jacobian
    (
        const scalar t,
        const scalarField& y,
        scalarField& dfdt,
        scalarSquareMatrix& dfdy
    ) const;
 
 
    // Public Member Functions
 
        //- Sample and write
        virtual bool write();
 
        //- Execute, currently does nothing
        virtual bool execute();
 
        //- Read
        virtual bool read(const dictionary&);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionObjects
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "thermoCoupleProbesTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //