forceModel_LaEuScalarTemp command
Syntax
Defined in couplingProperties dictionary.
forceModels
(
LaEuScalarTemp
);
LaEuScalarTempProps
{
velFieldName "U";
tempFieldName "T";
voidfractionFieldName "voidfraction";
partTempName "Temp";
partHeatFluxName "convectiveHeatFlux";
partHeatTransCoeffName "heatTransCoeff";
partHeatFluidName "heatFluid";
lambda scalar1;
Cp scalar2;
interpolation switch1;
TInterpolationType "type1"
verbose switch2;
maxSource scalar3;
scale scalar4;
scalarViscosity switch3;
nu scalar5;
NuCorrelation "NuCorrelation";
};
U = (optional, default “U”) name of the finite volume fluid velocity field
T = name of the finite volume scalar temperature field
voidfraction = (optional, default “voidfraction”) name of the finite volume voidfraction field
Temp = name of the DEM data representing the particles temperature
convectiveHeatFlux = name of the DEM data representing the particle-fluid convective heat flux
heatTransCoeff = name of heat transfer coefficient
heatFluid = scalar1 = fluid thermal conductivity [W/(m*K)]. Must be chosen >= 0! If 0, then heat transfer is ignored.
scalar2 = fluid specific heat capacity [W*s/(kg*K)]
switch1 = (optional, normally off) flag to use interpolated voidfraction and fluid velocity values
type1 = (optional, default cellPoint) interpolation type for T field
switch2 = (optional, default false) sub model switch, see forceSubModel for details
scalar3 = (optional) limit maximal turbulence
scalar4 = scaling of particle diameter: d_sim=scale*d_real. d_sim=(potentially coarse grained) particle diameter. scale=coarse graining factor. d_real= particle diameter as it is measured.
switch3 = (optional, default false) sub model switch, see forceSubModel for details
scalar5 = optional, only if switch3 is true
NuCorrelation = (optional, default=”LiMason”) chooses the heat correlation to be used for Nusselt number correlation. Valid options: ‘LiMason’, ‘Deen’.:l
Examples
forceModels
(
LaEuScalarTemp
);
LaEuScalarTempProps
{
velFieldName "U";
tempFieldName "T";
voidfractionFieldName "voidfraction";
partTempName "Temp";
partHeatFluxName "convectiveHeatFlux";
lambda 0.0256;
Cp 1007;
}
Description
This “forceModel” does not influence the particles or the fluid flow! Using the particles’ temperature a scalar field representing “particle-fluid heatflux” is calculated. The solver then uses this source field in the scalar transport equation for the temperature. The model for convective heat transfer is based on Li and Mason (2000), A computational investigation of transient heat transfer in pneumatic transport of granular particles, Pow.Tech 112
Restrictions
Goes only with cfdemSolverScalar and cfdemSolverReacting.