OpenFOAM - Thermophysical models

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OpenCFD	Solutions	Contact	OpenFOAM

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

hThermo	General thermophysical model calculation based on enthalpy $h \special {t4ht=$

pureMixture	General thermophysical model calculation for passive gas mixtures

Combustion models

hMixtureThermo	Calculates enthalpy for combustion mixture
hhuMixtureThermo	Calculates enthalpy for unburnt gas and combustion mixture

homogeneousMixture	Combustion mixture based on normalised fuel mass fraction $b \special {t4ht=$
inhomogeneousMixture	Combustion mixture based on $b \special {t4ht=$ and total fuel mass fraction $f t \special {t4ht=$
veryInhomogeneousMixture	Combustion mixture based on $b \special {t4ht=$ , $ft \special {t4ht=$ and unburnt fuel mass fraction $fu \special {t4ht=$
dieselMixture	Combustion mixture based on $ft \special {t4ht=$ and $fu \special {t4ht=$
multiComponentMixture	Combustion mixture based on multiple components [**]
chemkinMixture	Combustion mixture using CHEMKIN thermodynamics and reaction schemes database files

Laminar flame speed models

constLaminarFlameSpeed	Constant laminar flame speed
guldersLaminarFlameSpeed	Gülder’s laminar flame speed model

Thermophysical properties of liquids

nHeptane	Thermophysical properties of nHeptane
nOctane	Thermophysical properties of nOctane
nDecane	Thermophysical properties of nDecane
nDodecane	Thermophysical properties of nDodecane
isoOctane	Thermophysical properties of isoOctane
diMethylEther	Thermophysical properties of diMethylEther
diEthylEther	Thermophysical properties of diEthylEther
water	Thermophysical properties of water

Thermophysical properties of gaseous species

perfectGas	Perfect gas equation of state
hConstThermo	Constant specific heat $cp \special {t4ht=$ model with evaluation of enthalpy $h \special {t4ht=$ and entropy $s \special {t4ht=$
janafThermo	$cp \special {t4ht=$ evaluated by a function with coefficients from JANAF thermodynamic tables, from which $h \special {t4ht=$ , $s \special {t4ht=$ are evaluated
specieThermo	Thermophysical properties of species, derived from $c p \special {t4ht=$ , $h \special {t4ht=$ and/or $s \special {t4ht=$
constTransport	Constant transport properties
sutherlandTransport	Sutherland’s formula for temperature-dependent transport properties

Particle distribution functions

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

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