Reciprocal polynomial equation of state for liquids and solids. More...
Public Member Functions | |
rPolynomial (const Specie &sp, const coeffList &coeffs) | |
Construct from components. More... | |
rPolynomial (const word &name, const dictionary &dict) | |
Construct from name and dictionary. More... | |
rPolynomial (const word &name, const rPolynomial &) | |
Construct as named copy. More... | |
autoPtr< rPolynomial > | clone () const |
Construct and return a clone. More... | |
scalar | rho (scalar p, scalar T) const |
Return density [kg/m^3]. More... | |
scalar | H (const scalar p, const scalar T) const |
Return enthalpy contribution [J/kg]. More... | |
scalar | Cp (scalar p, scalar T) const |
Return Cp contribution [J/(kg K]. More... | |
scalar | E (const scalar p, const scalar T) const |
Return internal energy contribution [J/kg]. More... | |
scalar | Cv (scalar p, scalar T) const |
Return Cv contribution [J/(kg K]. More... | |
scalar | Sp (const scalar p, const scalar T) const |
Return entropy contribution to the integral of Cp/T [J/kg/K]. More... | |
scalar | Sv (const scalar p, const scalar T) const |
Return entropy contribution to the integral of Cv/T [J/kg/K]. More... | |
scalar | psi (scalar p, scalar T) const |
Return compressibility [s^2/m^2]. More... | |
scalar | Z (scalar p, scalar T) const |
Return compression factor []. More... | |
scalar | CpMCv (scalar p, scalar T) const |
Return (Cp - Cv) [J/(kg K]. More... | |
scalar | alphav (const scalar p, const scalar T) const |
Return volumetric coefficient of thermal expansion [1/T]. More... | |
void | write (Ostream &os) const |
Write to Ostream. More... | |
void | operator+= (const rPolynomial &) |
void | operator*= (const scalar) |
Static Public Member Functions | |
static word | typeName () |
Return the instantiated type name. More... | |
Static Public Attributes | |
static const bool | incompressible = false |
Is the equation of state is incompressible i.e. rho != f(p) More... | |
static const bool | isochoric = false |
Is the equation of state is isochoric i.e. rho = const. More... | |
Friends | |
rPolynomial | operator+ (const rPolynomial &, const rPolynomial &) |
rPolynomial | operator* (const scalar s, const rPolynomial &) |
rPolynomial | operator== (const rPolynomial &, const rPolynomial &) |
Ostream & | operator (Ostream &, const rPolynomial &) |
Reciprocal polynomial equation of state for liquids and solids.
1/rho = C[0] + C[1]*T + C[2]*sqr(T) - C[3]*p - C[4]*p*T
This polynomial for the reciprocal of the density provides a much better fit than the equivalent polynomial for the density and has the advantage that it support coefficient mixing to support liquid and solid mixtures in an efficient manner.
Property | Description |
---|---|
C | Density polynomial coefficients |
Example specification of the rPolynomial equation of state for pure water:
equationOfState { C (0.001278 -2.1055e-06 3.9689e-09 4.3772e-13 -2.0225e-16); }
Note: This fit is based on the small amount of data which is freely available for the range 20-65degC and 1-100bar.
Definition at line 115 of file rPolynomial.H.
|
inline |
Construct from components.
Definition at line 31 of file rPolynomialI.H.
rPolynomial | ( | const word & | name, |
const dictionary & | dict | ||
) |
Construct from name and dictionary.
Definition at line 32 of file rPolynomial.C.
|
inline |
Construct as named copy.
|
inline |
Construct and return a clone.
Definition at line 56 of file rPolynomialI.H.
|
inlinestatic |
Return the instantiated type name.
Definition at line 168 of file rPolynomial.H.
|
inline |
Return density [kg/m^3].
Definition at line 65 of file rPolynomialI.H.
|
inline |
Return enthalpy contribution [J/kg].
Definition at line 72 of file rPolynomialI.H.
|
inline |
Return Cp contribution [J/(kg K].
Definition at line 79 of file rPolynomialI.H.
|
inline |
Return internal energy contribution [J/kg].
Definition at line 86 of file rPolynomialI.H.
|
inline |
Return Cv contribution [J/(kg K].
Definition at line 93 of file rPolynomialI.H.
|
inline |
Return entropy contribution to the integral of Cp/T [J/kg/K].
Definition at line 100 of file rPolynomialI.H.
|
inline |
Return entropy contribution to the integral of Cv/T [J/kg/K].
Definition at line 107 of file rPolynomialI.H.
References NotImplemented.
|
inline |
Return compressibility [s^2/m^2].
Definition at line 115 of file rPolynomialI.H.
References p, rho, Foam::sqr(), and Foam::T().
|
inline |
|
inline |
Return (Cp - Cv) [J/(kg K].
Definition at line 129 of file rPolynomialI.H.
|
inline |
Return volumetric coefficient of thermal expansion [1/T].
Definition at line 136 of file rPolynomialI.H.
References p, rho, and Foam::T().
void write | ( | Ostream & | os | ) | const |
Write to Ostream.
Definition at line 46 of file rPolynomial.C.
References dictionary::add(), dict, dictionaryName::dictName(), Foam::indent(), and Foam::vtkWriteOps::write().
|
inline |
Definition at line 145 of file rPolynomialI.H.
References Foam::mag(), and Y.
|
inline |
Definition at line 161 of file rPolynomialI.H.
References s().
|
friend |
|
friend |
|
friend |
|
friend |
|
static |
Is the equation of state is incompressible i.e. rho != f(p)
Definition at line 177 of file rPolynomial.H.
|
static |
Is the equation of state is isochoric i.e. rho = const.
Definition at line 180 of file rPolynomial.H.