This section is referenced in the following other sections

Simulation Setup: Wall Mass Inject

6.12.8. Wall Mass Inject Boundary Condition On Surface

Scope: Fuego Region
Summary: Defines a wall with mass injection boundary condition on a named surface of the mesh. This boundary condition will use all flux conditions for all fields other than turbulent k.e.

begin Wall Mass Inject Boundary Condition On Surface Surfacename

    {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} Value

   Calculate Convection Coefficient Using Tref {=} Tref [Dt_Min {=} DTmin  | {clip}]

   Emissivity Spectral File Name {=} Name

   External Field For VariableName [{of} Species] {=} ExtFieldName [ Of Size Value With Multiplier {=} Multiplier  ]

   Emissivity {=} value

   Function For {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} FuncName [ In The {t | x | y | z} Direction  ]

   Function For Emissivity {=} functionName [ In The {t | x | y | z} Direction  ]

   Function For Injected_Temperature {=} functionName [ In The {t | x | y | z} Direction  ]

   Function For Mass Flux {=} functionName [ In The {t | x | y | z} Direction  ]

   Function For Mass_Fraction {=} FuncName In The {t | x | y | z} Direction

   Function For Mole_Fraction {=} FuncName In The {t | x | y | z} Direction

   Function For Radiation Boundary Temperature {=} functionName

   Function For Radiation Environment Temperature {=} functionName

   Function For Transmissivity {=} functionName [ In The {t | x | y | z} Direction  ]

   Function For Transparent Band Emissivity {=} functionName [ In The {t | x | y | z} Direction  ]

   Function For Wall Temperature {=} functionName [ In The {t | x | y | z} Direction  ]

   Injected_Temperature {=} temperatureValue

   Inline Function For {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} FuncStr

   Inline Function For Injected_Temperature {=} temperatureFunction

   Inline Function For Mass Flux {=} fluxFunction

   Integer Data For Subroutine SubName {=} Values...

   Interface Boundary

   Mass Flux {=} fluxValue

   Mass_Fraction Species {=} Mass fraction

   Mole_Fraction Species {=} Mole fraction

   Pool {absorption_coefficient | boil_flash_temperature_difference | density | evaporation_temperature | heat_of_evaporation | ignition_time | initial_height | initial_temperature | minimum_mass_flux | minimum_mass_injection_rate | percent_sensible | specific_heat} {=} The pool values

   Post Process Yplus

   Postprocess FluxType Flux Of {conserved_enthalpy | continuity | edc_product | enthalpy | mixture_fraction | nuclei | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot | species | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_momentum | x_solid_momentum | y_momentum | y_solid_momentum | z_momentum | z_solid_momentum} [ As aliases...  ]

   Project Nodes

   Progress_Variable ProgressVariableName {=} Value

   Real Data For Subroutine SubName {=} Values...

   Radiation Boundary Temperature {=} value

   Radiation Boundary Temperature Field {=} FieldName

   Radiation Environment Temperature {=} value

   Radiation Environment Temperature Field {=} FieldName

   Subroutine For {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} Subroutine

   Subroutine For Emissivity {=} subroutineName

   Subroutine For Mass_Fraction {=} Subroutine

   Subroutine For Mole_Fraction {=} Subroutine

   Subroutine For Radiation Boundary Temperature {=} subroutineName

   Subroutine For Radiation Environment Temperature {=} subroutineName

   Subroutine For Transmissivity {=} subroutineName

   Subroutine For Transparent Band Emissivity {=} subroutineName

   Subroutine For Wall Temperature {=} subroutineName

   Transparent Band Emissivity {=} value

   Transmissivity {=} value

   Use Equilibrium Production Model

   Use Law Of Wall Blowing Correction

   Wall Temperature {=} value

   Law_Of_Wall_Blowing_Parameter {=} Law of Wall Blowing parameter

   Law_Of_Wall_Roughness_Parameter {=} Law of the Wall Roughness parameter

end Wall Mass Inject Boundary Condition On Surface Surfacename

6.12.8.1. Line Commands

Primitivevariable

Syntax

Primitivevariable {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} Value

Summary

Value for the specified variable (in consistent units). Value can be a constant or a string function of position (x,y,z), time (t), and any global variable.

The function string must be enclosed in quotes if it has spaces or commas. For example: x_velocity = “min(1, 0.1*t)”

Parameter	Value	Default
PrimitiveVariable	{contact_angle \| edc_product \| gas_volume_fraction \| mixture_fraction \| pressure \| progress_variable \| scalar_variance \| second_mixture_fraction \| solid_volume_fraction \| soot_mass_fraction \| soot_nuclei_mass_fraction \| temperature \| turbulent_dissipation \| turbulent_frequency \| turbulent_helmholtz_function \| turbulent_kinetic_energy \| turbulent_v2 \| volume_of_fluid \| x_solid_velocity \| x_velocity \| y_solid_velocity \| y_velocity \| z_solid_velocity \| z_velocity}	–
{=}	{= \| are \| is}	–
Value	“string”	–

Calculate Convection Coefficient

Syntax: Calculate Convection Coefficient Using Tref {=} Tref [Dt_Min {=} DTmin | {clip}]
Summary: Calculates the convection coefficient on the wall using a user-specified value for the reference temperature. This calculates $h = Q / (T_{wall} - T_{ref})$ .

$T_{ref}$ can be a constant, or a string function of time and global variables.

By default, $h$ is set to 0 if $T_{wall} - T_{ref} \lt 1 \times 10^{-6}$ however a different tolerance can be supplied with $\Delta T_{min}$ .

The optional ‘clip’ argument will clip the calculated value of $h$ to be non-negative.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Tref	“string”	–
{=}	{= \| are \| is}	–
DTmin	real	–
Clip	{clip}	–

Emissivity Spectral File Name

Syntax: Emissivity Spectral File Name {=} Name
Summary: Specify the file name for defining spectral radiation properties on a surface.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Name	string	–

External Field For

Syntax: External Field For VariableName [{of} Species] {=} ExtFieldName [ Of Size Value With Multiplier {=} Multiplier ]
Summary: Name of the field that is to be transferred in. For species equation, specify variable as “mass fraction of” followed by the species name for transfers associated with separated individual species field names.

Parameter	Value	Default
VariableName	string	–
Species	string	–
{=}	{= \| are \| is}	–
ExtFieldName	string	–

Emissivity

Syntax: Emissivity {=} value
Summary: Constant value for emissivity variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
value	“string”	–

Function For

Syntax: Function For {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} FuncName [ In The {t | x | y | z} Direction ]
Summary: Name of function to use for the given variable, in the specified direction.

Parameter	Value	Default
PrimitiveVariable	{contact_angle \| edc_product \| gas_volume_fraction \| mixture_fraction \| pressure \| progress_variable \| scalar_variance \| second_mixture_fraction \| solid_volume_fraction \| soot_mass_fraction \| soot_nuclei_mass_fraction \| temperature \| turbulent_dissipation \| turbulent_frequency \| turbulent_helmholtz_function \| turbulent_kinetic_energy \| turbulent_v2 \| volume_of_fluid \| x_solid_velocity \| x_velocity \| y_solid_velocity \| y_velocity \| z_solid_velocity \| z_velocity}	–
{=}	{= \| are \| is}	–
FuncName	string	–

Function For Emissivity

Syntax: Function For Emissivity {=} functionName [ In The {t | x | y | z} Direction ]
Summary: Name of the function to use for the emissivity in the given direction (default direction = time).

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Function For Injected_Temperature

Syntax: Function For Injected_Temperature {=} functionName [ In The {t | x | y | z} Direction ]
Summary: Name of function to use for the injected temperature, in the specified direction.

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Function For Mass Flux

Syntax: Function For Mass Flux {=} functionName [ In The {t | x | y | z} Direction ]
Summary: Name of function to use for mass flux, in the specified direction.

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Function For Mass_Fraction

Syntax: Function For Mass_Fraction {=} FuncName In The {t | x | y | z} Direction
Summary: Name of the mass fraction function to use for all species in the given direction. Note that this must be a Multicolumn function

Parameter	Value	Default
{=}	{= \| are \| is}	–
FuncName	string	–
Direction	{t \| x \| y \| z}	–

Function For Mole_Fraction

Syntax: Function For Mole_Fraction {=} FuncName In The {t | x | y | z} Direction
Summary: Name of the mass fraction function to use for all species in the given direction. Note that this must be a Multicolumn function

Parameter	Value	Default
{=}	{= \| are \| is}	–
FuncName	string	–
Direction	{t \| x \| y \| z}	–

Function For Radiation Boundary Temperature

Syntax: Function For Radiation Boundary Temperature {=} functionName
Summary: Name of function to use for the radiation_boundary_temperature variable

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Function For Radiation Environment Temperature

Syntax: Function For Radiation Environment Temperature {=} functionName
Summary: Name of function to use for the radiation_environment_temperature variable

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Function For Transmissivity

Syntax: Function For Transmissivity {=} functionName [ In The {t | x | y | z} Direction ]
Summary: Name of function to use for the transmissivity variable

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Function For Transparent Band Emissivity

Syntax: Function For Transparent Band Emissivity {=} functionName [ In The {t | x | y | z} Direction ]
Summary: Name of function to use for the transparent emissivity band for spectral emissivity on surfaces.

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Function For Wall Temperature

Syntax: Function For Wall Temperature {=} functionName [ In The {t | x | y | z} Direction ]
Summary: Name of function to use for the wall_temperature variable, in the specified direction.

Parameter	Value	Default
{=}	{= \| are \| is}	–
functionName	string	–

Injected_Temperature

Syntax: Injected_Temperature {=} temperatureValue
Summary: Injected temperature of mass injection wall BC with specified flux. Value can be a constant or a string function of time, space, and global variables.

Parameter	Value	Default
{=}	{= \| are \| is}	–
temperatureValue	“string”	–

Inline Function For

Syntax: Inline Function For {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} FuncStr
Summary: warning{This command is deprecated. Regular BCs now support using string functions directly}

Parameter	Value	Default
PrimitiveVariable	{contact_angle \| edc_product \| gas_volume_fraction \| mixture_fraction \| pressure \| progress_variable \| scalar_variance \| second_mixture_fraction \| solid_volume_fraction \| soot_mass_fraction \| soot_nuclei_mass_fraction \| temperature \| turbulent_dissipation \| turbulent_frequency \| turbulent_helmholtz_function \| turbulent_kinetic_energy \| turbulent_v2 \| volume_of_fluid \| x_solid_velocity \| x_velocity \| y_solid_velocity \| y_velocity \| z_solid_velocity \| z_velocity}	–
{=}	{= \| are \| is}	–
FuncStr	“string”	–

Inline Function For Injected_Temperature

Syntax: Inline Function For Injected_Temperature {=} temperatureFunction
Summary: warning{This command is deprecated. Inline functions are supported with the regular boundary condition.}

Parameter	Value	Default
{=}	{= \| are \| is}	–
temperatureFunction	“string”	–

Inline Function For Mass Flux

Syntax: Inline Function For Mass Flux {=} fluxFunction
Summary: warning{This command is deprecated. Inline functions are supported with the regular boundary condition.}

Parameter	Value	Default
{=}	{= \| are \| is}	–
fluxFunction	“string”	–

Integer Data For Subroutine

Syntax: Integer Data For Subroutine SubName {=} Values…
Summary: List of integer data values to be passed down in to the user subroutine. These values may be changed by the user subroutine.

Parameter	Value	Default
SubName	string	–
{=}	{= \| are \| is}	–
Values	integer…	–

Interface Boundary

Syntax: Interface Boundary
Summary: Mark this fluids boundary as an interface between two physical regions. Data will be interpolated across this boundary.

Mass Flux

Syntax: Mass Flux {=} fluxValue
Summary: Mass injection rate (mass/area-time). Value can be a constant or a string function of time, space, and global variables.

Parameter	Value	Default
{=}	{= \| are \| is}	–
fluxValue	“string”	–

Mass_Fraction

Syntax: Mass_Fraction Species {=} Mass fraction
Summary: Value for the mass fraction of selected species. Can be a constant value or a string function of space (x,y,z), time (t), and any global variable.

Parameter	Value	Default
Species	string	–
{=}	{= \| are \| is}	–
Mass fraction	“string”	–

Mole_Fraction

Syntax: Mole_Fraction Species {=} Mole fraction
Summary: Value for the mole fraction of selected species. Can be a constant value or a string function of space (x,y,z), time (t), and any global variable.

Parameter	Value	Default
Species	string	–
{=}	{= \| are \| is}	–
Mole fraction	“string”	–

Pool

Syntax

Pool {absorption_coefficient | boil_flash_temperature_difference | density | evaporation_temperature | heat_of_evaporation | ignition_time | initial_height | initial_temperature | minimum_mass_flux | minimum_mass_injection_rate | percent_sensible | specific_heat} {=} The pool values

Summary

Specify parameters for pool evaporation model.

Description

Specify a number of pool BC parameters. Details about some of the parameters are listed below:

Minimum_Mass_Injection_Rate This command is DEPRECATED. Formerly this would limit the minimum mass flow rate (mass/time) per node to this value when the time is less than the ignition time. This has been replaced by the Minimum_Mass_Flux command, which is in mesh-independent mass/area-time units.

Minimum_Mass_Flux Specify a minimum mass flux to apply to the pool while time is less than the specified ignition time. This defaults to 1e-3 g/(cm $^2$ -s) (converted to problem units).

Ignition_Time Specify the time before which the minimum mass flux should be applied. This defaults to 1 second.

Evaporation_Temperature Pool evaporation temperature; default provided as 450 K (converted to user units).

Absorption_Coefficient Absorption coefficient for pool; default provided as 1.0.

Boil_Flash_Temperature_Difference Temperature difference between boil and flash temperature ( $\Delta T_{flash}$ ); default provided as 125 K.

Percent_Sensible Maximum fraction of energy that is applied to pool heat-up ( $f_{sensible, max}$ ); default provided as 0.7. This value should be between 0 and 1. The fraction of energy that goes into heating up the pool ( $f_{sensible}$ ) instead of phase change is defined as:

$f_{sensible} = \min(f_{sensible, max}, (T_{evap} - T_{pool})/\Delta T_{flash})$

Setting this fraction to a value less than 1 ensures that even at pool temperatures much lower than the boiling point some fraction of the energy goes into phase change.

Heat_Of_Evaporation Pool heat of evaporation; default provided as 2.8e9 erg/g (converted to user units).

Specific_Heat Pool specific heat; default provided as 24.7e6 erg/g-k (converted to user units).

Density Pool density; default provided as 0.808 $g/cm^3$ (converted to user units).

Parameter	Value	Default
PoolBC	{absorption_coefficient \| boil_flash_temperature_difference \| density \| evaporation_temperature \| heat_of_evaporation \| ignition_time \| initial_height \| initial_temperature \| minimum_mass_flux \| minimum_mass_injection_rate \| percent_sensible \| specific_heat}	–
{=}	{= \| are \| is}	–
The pool values	real	–

Post Process Yplus

Syntax

Post Process Yplus

Summary

Request post processing of yplus on this mesh part.

Description

The normalized distance to the wall ( $y^+$ ) can be post-processed on any wall (laminar or turbulent). Yplus is calculated in a manner consistent with how it is calculated in the solution procedure. Max/min $y^+$ values are provided as output at every wall. This option computes and stores the entire $y^+$ field along the wall. Since this option computes $y^+$ using the most recent values for all solution variables, the max/min written to the log may differ from the max/min of this field. However, these will become identical at convergence.

Note that this line command does not automatically output this field to a results file. For that, one must use the standard output line command for a nodal field using the string name, yplus.

Postprocess

Syntax

Postprocess FluxType Flux Of {conserved_enthalpy | continuity | edc_product | enthalpy | mixture_fraction | nuclei | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot | species | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_momentum | x_solid_momentum | y_momentum | y_solid_momentum | z_momentum | z_solid_momentum} [ As aliases… ]

Summary

Enable nodal flux post-processing for a given equation. Flux types can be “total”, “advective”, or “diffusive”. Integrated fluxes will also be output to global variables for post-processing or use in other string functions.

By default the variables will be named based on the equation and sideset they are applied to as bc_FluxType_EquationName_flux_SurfaceName. However, if you want to assign a more compact or descriptive name you can provide it with

POSTPROCESS TOTAL FLUX OF Continuity AS mdot1

When post-processing enthalpy, the average temperature is also output as a global variable. If you provide only one alias the enthalpy flux uses your alias and the average temperature is automatically named. If you provide two aliases the first is used for enthalpy and the second is used for temperature.

POSTPROCESS TOTAL FLUX OF ENTHALPY AS hFlux
POSTPROCESS TOTAL FLUX OF ENTHALPY AS hFlux Tavg

When post-processing species, the post-processor is run for each species that is solved for. This means that there is no post-processor run on the last species (which is determined by a fractional balance). If you provide aliases for the species post-processor you should provide one for each post-processed species. For example, in a problem with O2, CO2, and N2 (in that order) you could use:

POSTPROCESS TOTAL FLUX OF SPECIES AS mdotO2 mdotCO2

Parameter	Value	Default
FluxType	string	–
equation	{conserved_enthalpy \| continuity \| edc_product \| enthalpy \| mixture_fraction \| nuclei \| progress_variable \| scalar_variance \| second_mixture_fraction \| solid_volume_fraction \| soot \| species \| temperature \| turbulent_dissipation \| turbulent_frequency \| turbulent_helmholtz_function \| turbulent_kinetic_energy \| turbulent_v2 \| volume_of_fluid \| x_momentum \| x_solid_momentum \| y_momentum \| y_solid_momentum \| z_momentum \| z_solid_momentum}	–

Project Nodes

Syntax: Project Nodes
Summary: Allow for nodal projection on the particular mesh part.
Description: The nodal projection of velocity is defaulted to occur on open boundary conditions only. Wall and inflow BCs are defaulted to not be projected, even on flux inflow (i.e., USE FLUXES) and turbulent wall nodes. This option flags the particular mesh part to be included in the nodes to be projected.

Progress_Variable

Syntax: Progress_Variable ProgressVariableName {=} Value
Summary: Constant value for the progress variable of selected scalars.

Parameter	Value	Default
ProgressVariableName	string	–
{=}	{= \| are \| is}	–
Value	real	–

Real Data For Subroutine

Syntax: Real Data For Subroutine SubName {=} Values…
Summary: List of real data values to be passed down in to the user subroutine. These values may be changed by the user subroutine.

Parameter	Value	Default
SubName	string	–
{=}	{= \| are \| is}	–
Values	real…	–

Radiation Boundary Temperature

Syntax: Radiation Boundary Temperature {=} value
Summary: Constant value for radiation_boundary_temperature variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
value	“string”	–

Radiation Boundary Temperature Field

Syntax: Radiation Boundary Temperature Field {=} FieldName
Summary: Name of the field to use for the radiation boundary temperature.

Parameter	Value	Default
{=}	{= \| are \| is}	–
FieldName	string	–

Radiation Environment Temperature

Syntax: Radiation Environment Temperature {=} value
Summary: Constant value for radiation_environment_temperature variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
value	“string”	–

Radiation Environment Temperature Field

Syntax: Radiation Environment Temperature Field {=} FieldName
Summary: Name of the field to use for the radiation environment temperature.

Parameter	Value	Default
{=}	{= \| are \| is}	–
FieldName	string	–

Subroutine For

Syntax: Subroutine For {contact_angle | edc_product | gas_volume_fraction | mixture_fraction | pressure | progress_variable | scalar_variance | second_mixture_fraction | solid_volume_fraction | soot_mass_fraction | soot_nuclei_mass_fraction | temperature | turbulent_dissipation | turbulent_frequency | turbulent_helmholtz_function | turbulent_kinetic_energy | turbulent_v2 | volume_of_fluid | x_solid_velocity | x_velocity | y_solid_velocity | y_velocity | z_solid_velocity | z_velocity} {=} Subroutine
Summary: Name of the subroutine to use for this variable.

Parameter	Value	Default
PrimitiveVariable	{contact_angle \| edc_product \| gas_volume_fraction \| mixture_fraction \| pressure \| progress_variable \| scalar_variance \| second_mixture_fraction \| solid_volume_fraction \| soot_mass_fraction \| soot_nuclei_mass_fraction \| temperature \| turbulent_dissipation \| turbulent_frequency \| turbulent_helmholtz_function \| turbulent_kinetic_energy \| turbulent_v2 \| volume_of_fluid \| x_solid_velocity \| x_velocity \| y_solid_velocity \| y_velocity \| z_solid_velocity \| z_velocity}	–
{=}	{= \| are \| is}	–
Subroutine	string	–

Subroutine For Emissivity

Syntax: Subroutine For Emissivity {=} subroutineName
Summary: Name of the user subroutine to use for the emissivity variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
subroutineName	string	–

Subroutine For Mass_Fraction

Syntax: Subroutine For Mass_Fraction {=} Subroutine
Summary: Name of the subroutine to use for the mass fraction. ALL species mass fractions must be assigned by this subroutine.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Subroutine	string	–

Subroutine For Mole_Fraction

Syntax: Subroutine For Mole_Fraction {=} Subroutine
Summary: Name of the subroutine to use for the mole fractions. ALL species mole fractions must be assigned by this subroutine.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Subroutine	string	–

Subroutine For Radiation Boundary Temperature

Syntax: Subroutine For Radiation Boundary Temperature {=} subroutineName
Summary: Name of the user subroutine to use for the radiation_boundary_temperature variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
subroutineName	string	–

Subroutine For Radiation Environment Temperature

Syntax: Subroutine For Radiation Environment Temperature {=} subroutineName
Summary: Name of the user subroutine to use for the radiation_environment_temperature variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
subroutineName	string	–

Subroutine For Transmissivity

Syntax: Subroutine For Transmissivity {=} subroutineName
Summary: Name of the user subroutine to use for the transmissivity variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
subroutineName	string	–

Subroutine For Transparent Band Emissivity

Syntax: Subroutine For Transparent Band Emissivity {=} subroutineName
Summary: Name of the user subroutine to use for the transparent emissivity band for spectral emissivity on surfaces.

Parameter	Value	Default
{=}	{= \| are \| is}	–
subroutineName	string	–

Subroutine For Wall Temperature

Syntax: Subroutine For Wall Temperature {=} subroutineName
Summary: Name of the user subroutine to use for the wall_temperature variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
subroutineName	string	–

Transparent Band Emissivity

Syntax: Transparent Band Emissivity {=} value
Summary: Constant value to use for the emissivity in the transparent band for spectral surfaces.

Parameter	Value	Default
{=}	{= \| are \| is}	–
value	“string”	–

Transmissivity

Syntax: Transmissivity {=} value
Summary: Constant value for transmissivity variable.

Parameter	Value	Default
{=}	{= \| are \| is}	–
value	“string”	–

Use Equilibrium Production Model

Syntax

Use Equilibrium Production Model

Summary

Change near-wall turbulence production.

Description

This option specifies that the near wall turb_ke production term is given by:

$\frac{{\tau_w}^2}{\kappa \sqrt[4]{C_\mu}\rho y_p \sqrt{k}}$

. Modifications are made for the KW and SST model. This model is suggested when using the standard KW and SST model when a Dirichlet condition is not placed on the wall node of turbulence kinetic energy.

Use Law Of Wall Blowing Correction

Syntax: Use Law Of Wall Blowing Correction
Summary: Modify wall friction velocity LOW extraction to include the effect of mass injection. The constant is generally roughly ten.
Description: This option allows for modification of the standard law of the wall by blowing effects.

Wall Temperature

Syntax: Wall Temperature {=} value
Summary: Value for wall_temperature variable. Can be a constant or a string function of space (x,y,z), time (t) or global variables.

Parameter	Value	Default
{=}	{= \| are \| is}	–
value	“string”	–

Law_Of_Wall_Blowing_Parameter

Syntax: Law_Of_Wall_Blowing_Parameter {=} Law of Wall Blowing parameter
Summary: Specify mass injection blowing correction; usually roughly ten.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Law of Wall Blowing parameter	real	10.0

Law_Of_Wall_Roughness_Parameter

Syntax: Law_Of_Wall_Roughness_Parameter {=} Law of the Wall Roughness parameter
Summary: Specify dimensionless roughness factor to be used in the law-of-the-wall formulation.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Law of the Wall Roughness parameter	real	9.8