/usr/include/freefoam/dieselSpray/parcel.H is in libfreefoam-dev 0.1.0+dfsg-1build1.
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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
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under the terms of the GNU General Public License as published by
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Class
Foam::parcel
Description
A parcel of particles
\*---------------------------------------------------------------------------*/
#ifndef parcel_H
#define parcel_H
#include <lagrangian/Particle.H>
#include <OpenFOAM/contiguous.H>
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
class spray;
/*---------------------------------------------------------------------------*\
Class parcel Declaration
\*---------------------------------------------------------------------------*/
class parcel
:
public Particle<parcel>
{
// Private member data
// Reference to the names of the liquid components
List<word> liquidComponents_;
// Defining data (read and written to field files)
//- Diameter of droplets in parcel
scalar d_;
//- Temperature of droplets in parcel
scalar T_;
//- Total parcel mass
scalar m_;
//- Spherical deviation of droplets in parcel
scalar y_;
//- Rate of change of spherical deviation of droplets in parcel
scalar yDot_;
//- Characteristic time of droplets in parcel
scalar ct_;
//- Stripped mass of droplets in parcel
scalar ms_;
//- Time spent in turbulent eddy
scalar tTurb_;
//- Part of liquid core (1-fully liquid, 0-droplet)
scalar liquidCore_;
//- injected from injector
// Should really be a label, but is scalar due to
// post-processing reasons
scalar injector_;
//- Velocity of parcel
vector U_;
//- Turbulent velocity fluctuation
vector Uturb_;
//- Normal n_ and axis describe the 2D plane
// in which the particle moves
vector n_;
//- Liquid components molar fractions
scalarField X_;
// Derived state information (not read or written)
//- Momentum relaxation time of droplets in parcel
scalar tMom_;
// Private member functions
//- Set the relaxation times
void setRelaxationTimes
(
label celli,
scalar& tauMomentum,
scalarField& tauEvaporation,
scalar& tauHeatTransfer,
scalarField& tauBoiling,
const spray& sprayDatabase,
const scalar rho,
const vector& Up,
const scalar temperature,
const scalar pressure,
const scalarField& Yf,
const scalarField& m0,
const scalar dt
);
void updateParcelProperties
(
const scalar dt,
spray& sprayData,
const label celli,
const label facei
);
public:
friend class Cloud<parcel>;
// Constructors
//- Construct from components
parcel
(
const Cloud<parcel>& cloud,
const vector& position,
const label celli,
const vector& n,
const scalar d,
const scalar T,
const scalar m,
const scalar y,
const scalar yDot,
const scalar ct,
const scalar ms,
const scalar tTurb,
const scalar liquidCore,
const scalar injector,
const vector& U,
const vector& Uturb,
const scalarField& X,
const List<word>& liquidNames
);
//- Construct from Istream reading field values if required
parcel
(
const Cloud<parcel>& cloud,
Istream& is,
bool readFields = true
);
// Member Functions
// Access
//- Return the names of the liquid components
inline const List<word>& liquidNames() const;
//- Return the names of the liquid fuel components - identical with liquidNames
inline const List<word>& fuelNames() const;
//- Return diameter of droplets in parcel
inline scalar d() const;
//- Return diameter of droplets in parcel
inline scalar& d();
//- Return temperature of droplets in parcel
inline scalar T() const;
//- Return temperature of droplets in parcel
inline scalar& T();
//- Return total parcel mass
inline scalar m() const;
//- Return total parcel mass
inline scalar& m();
//- Return spherical deviation of droplets in parcel
inline scalar dev() const;
//- Return spherical deviation of droplets in parcel
inline scalar& dev();
//- Return rate of change of spherical deviation of
// droplets in parcel
inline scalar ddev() const;
//- Return rate of change of spherical deviation of
// droplets in parcel
inline scalar& ddev();
//- Return characteristic time of droplets in parcel
inline scalar ct() const;
//- Return characteristic time of droplets in parcel
inline scalar& ct();
//- Return stripped mass of droplets in parcel
inline scalar& ms();
//- Return stripped mass of droplets in parcel
inline scalar ms() const;
//- Return time spent in turbulent eddy
inline scalar& tTurb();
//- Return time spent in turbulent eddy
inline scalar tTurb() const;
//- Return part of liquid liquidCore
inline scalar& liquidCore();
//- Return part of liquid liquidCore
inline scalar liquidCore() const;
//- Return the injector from which is injected
inline scalar& injector();
//- Return the injector from which is injected
inline scalar injector() const;
//- Return velocity of parcel
inline const vector& U() const;
//- Return velocity of parcel
inline vector& U();
//- Return turbulent velocity fluctuation
inline const vector& Uturb() const;
//- Return turbulent velocity fluctuation
inline vector& Uturb();
//- Return the normal used for 2D purposes
inline const vector& n() const;
//- Return the normal used for 2D purposes
inline vector& n();
//- Return the liquid components molar fractions
inline const scalarField& X() const;
//- Return the liquid components molar fractions
inline scalarField& X();
//- Return the momentum relaxation time of droplets in parcel
inline scalar& tMom();
//- Return the momentum relaxation time of droplets in parcel
inline scalar tMom() const;
// Derived information
//- Return statistical number of drops in parcel
scalar N(const scalar rho) const;
//- Return relative velocity between given vector and parcel
inline vector Urel(const vector&) const;
// Dimensionless Numbers
//- Reynolds number based on rho an dynamic viscosity
scalar Re
(
const scalar rho,
const vector& U,
const scalar mu
) const;
//- Reynolds number based on kinematic viscosity
scalar Re
(
const vector& U,
const scalar nu
) const;
//- Weber number
scalar We
(
const vector& U,
const scalar rho,
const scalar sigma
) const;
//- Schmidt number based on dynamic viscosity and rho
scalar Sc
(
const scalar mu,
const scalar rho,
const scalar massDiffusion
) const;
//- Schmidt number based on kinematic viscosity
scalar Sc
(
const scalar nu,
const scalar massDiffusion
) const;
//- Prandtl number
scalar Pr
(
const scalar cp,
const scalar mu,
const scalar kappa
) const;
//- Volume of one droplet in the parcel
scalar Vd() const;
//- Volume of all droplets in parcel
scalar V(const scalar rho) const;
// Parcel operations
bool move(spray& sprayData);
//- Transform the position and physical properties of the particle
// according to the given transformation tensor
void transformProperties(const tensor& T);
//- Transform the position and physical properties of the particle
// according to the given separation vector
void transformProperties(const vector& separation);
//- fix the 2D plane normal,
// when particle hits a face it is slightly perturbed
// towards the face centre and n_ will no longer be valid
inline void correctNormal(const vector& sym);
// I/O
static void readFields(Cloud<parcel>& c);
static void writeFields(const Cloud<parcel>& c);
// Ostream Operator
friend Ostream& operator<<(Ostream&, const parcel&);
};
template<>
inline bool contiguous<parcel>()
{
return true;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#include <dieselSpray/parcelI.H>
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************ vim: set sw=4 sts=4 et: ************************ //
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