Thermophysical models

Thermophysical models

There is clearly a need to represent the true behaviour of liquids and gases in our simulations. OpenFOAM is distributed with a huge library of thermophysical models and properties that can read data from standard tables, including liquid and gas properties, combustion and flame speed models.
Basic thermophysical models


hPsiThermo General thermophysical model calculation based on enthalpy   h  \relax \special {t4ht= and compressibility                          ψ  \relax \special {t4ht=
ePsiThermo General thermophysical model calculation based on internal energy         e  \relax \special {t4ht= and compressibility                                ψ  \relax \special {t4ht=
hRhoThermo General thermophysical model calculation based on enthalpy   h  \relax \special {t4ht=
pureMixture General thermophysical model calculation for passive gas mixtures
 
Reaction models


hPsiMixtureThermo Calculates enthalpy for combustion mixture based on ψ  \relax \special {t4ht=
hRhoMixtureThermo Calculates enthalpy for combustion mixture based on ρ  \relax \special {t4ht=
hhuMixtureThermo Calculates enthalpy for unburnt gas and combustion mixture
homogeneousMixture Combustion mixture based on normalised fuel mass fraction  b  \relax \special {t4ht=
inhomogeneousMixture Combustion mixture based on b  \relax \special {t4ht= and total fuel mass fraction    ft  \relax \special {t4ht=
veryInhomogeneousMixture Combustion mixture based on b  \relax \special {t4ht=, f
 t  \relax \special {t4ht= and unburnt fuel mass fraction            f
            u  \relax \special {t4ht=
dieselMixture Combustion mixture based on ft  \relax \special {t4ht= and fu  \relax \special {t4ht=
basicMultiComponentMixture Basic mixture based on multiple components
multiComponentMixture Derived mixture based on multiple components
reactingMixture Combustion mixture using thermodynamics and reaction schemes
egrMixture Exhaust gas recirculation mixture
 
Radiation models


P1 P1 model
fvDOM Finite volume discrete ordinate method
 
Laminar flame speed models


constLaminarFlameSpeed Constant laminar flame speed
GuldersLaminarFlameSpeed Gülder’s laminar flame speed model
GuldersEGRLaminarFlameSpeed Gülder’s laminar flame speed model with exhaust gas recirculation modelling
 
Thermophysical properties of gaseous species


icoPolynomial Incompressible polynomial equation of state, e.g. for liquids
perfectGas Perfect gas equation of state
eConstThermo Constant specific heat cp  \relax \special {t4ht= model with evaluation of internal energy          e  \relax \special {t4ht= and entropy                         s  \relax \special {t4ht=
hConstThermo Constant specific heat cp  \relax \special {t4ht= model with evaluation of enthalpy   h  \relax \special {t4ht= and entropy                   s  \relax \special {t4ht=
hPolynomialThermo cp  \relax \special {t4ht= evaluated by a function with coefficients from polynomials, from which                 h  \relax \special {t4ht=,                     s  \relax \special {t4ht= are evaluated
janafThermo cp  \relax \special {t4ht= evaluated by a function with coefficients from JANAF thermodynamic tables, from which                                   h  \relax \special {t4ht=,                                       s  \relax \special {t4ht= are evaluated
specieThermo Thermophysical properties of species, derived from c
 p  \relax \special {t4ht=, h  \relax \special {t4ht= and/or         s  \relax \special {t4ht=
constTransport Constant transport properties
polynomialTransport Polynomial based temperature-dependent transport properties
sutherlandTransport Sutherland’s formula for temperature-dependent transport properties
 
Functions/tables of thermophysical properties


NSRDSfunctions National Standard Reference Data System (NSRDS) - American Institute of Chemical Engineers (AICHE) data compilation tables
APIfunctions American Petroleum Institute (API) function for vapour mass diffusivity
 
Particle distribution functions


RosinRammler Rosin-Rammler distribution
normal Normal distribution
uniform Uniform distribution
exponential Exponential distribution
general General distribution
 
Chemistry model


chemistryModel Chemical reaction model
chemistrySolver Chemical reaction solver
 
Other models


liquids Thermophysical properties of liquids
liquidMixture Thermophysical properties of liquid mixtures
solids Thermophysical properties of solids
solidMixture Thermophysical properties of solid mixtures