7.13. Global Constants

This section is referenced in the following other sections

Simulation Setup: Radiation

7.13.1. Global Constants

Scope: Sierra
Summary: Set of universal constants for a simulation.

begin Global Constants empty

   Faradays Constant {=} Faraday

   Gravity Vector {=} Gravity1 Gravity2 Gravity3

   Ideal Gas Constant {=} Sigma

   K-E Turbulence Model Parameter Param {=} Value

   K-W Turbulence Model Parameter Param {=} Value

   Les Turbulence Model Parameter Param {=} Value

   Light Speed {=} LightSpeed

   Planck Constant {=} PlanckConstant

   Stefan Boltzmann Constant {=} Sigma

   Turbulence Model Param Number {=} Value

end Global Constants empty

7.13.1.1. Line Commands

Faradays Constant

Syntax: Faradays Constant {=} Faraday
Summary: Faraday’s Constant. NOTE: Another Faraday’s constant value can be specified while using certain code capabilities. This global constants value will be discarded for any other specified Faraday’s constant values.

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

Gravity Vector

Syntax: Gravity Vector {=} Gravity1 Gravity2 Gravity3
Summary: Gravity constant in vector form, acceleration components.

Parameter	Value	Default
{=}	{= \| are \| is}	–
Gravity	real1 real2 real3	–

Ideal Gas Constant

Syntax: Ideal Gas Constant {=} Sigma
Summary: Ideal gas constant. NOTE: Another ideal gas constant value can be specified while using certain code capabilities. This global constants value will be discarded for any other specified ideal gas constant values.

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

K-E Turbulence Model Parameter

Syntax: K-E Turbulence Model Parameter Param {=} Value
Summary: $k - \epsilon$ RANS turbulence model parameters.

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

K-W Turbulence Model Parameter

Syntax: K-W Turbulence Model Parameter Param {=} Value
Summary: $k - \omega$ RANS turbulence model parameters.

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

Les Turbulence Model Parameter

Syntax: Les Turbulence Model Parameter Param {=} Value
Summary: LES turbulence model parameters.

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

Light Speed

Syntax: Light Speed {=} LightSpeed
Summary: Speed of Light. Depending on the units involved in the specific problem by the user, this value will differ.

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

Planck Constant

Syntax: Planck Constant {=} PlanckConstant
Summary: Planck Constant. Depending on the units involved in the specific problem by the user, this value will differ.

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

Stefan Boltzmann Constant

Syntax: Stefan Boltzmann Constant {=} Sigma
Summary: Stefan-Boltzmann constant. Depending on the units involved in the specific problem by the user, this value will differ.

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

Turbulence Model

Syntax: Turbulence Model Param Number {=} Value
Summary: Turbulence model Schmidt and Prandtl numbers

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