7.15.1.10. Exponential

Syntax

Ic For DofName [{of} SpeciesName | {in} MaterialPhaseName | {ls} {a | b | c}] {@ | at | for | on | over} MeshExtent = Exponential [Power_Output = power_output | Flux_Output = flux_output | Toggle = toggle | Variable = variable | Constant = constant | Multiplier = multiplier | Exponent = exponent]

Summary

Value from an exponential function

Description

The value, $\phi$ , is calculated as $\phi = C + M e^{k X}$ where $X$ is the variable, $C$ is the constant, $M$ is the multiplier, and $k$ is the exponent. $C$ and $M$ are optional and default to $0$ and $1$ , respectively, if omitted

The following options are present in most boundary conditions/sources. The meaning of each option is as follows:

Power_Output: If specified, the total (integrated) power of the given BC/Src is calculated and stored into the global variable name specified as the power_output argument.
Flux_Output: If specified, the average flux of the given BC/Src is calculated and stored into the global variable name specified as the flux_output argument.
Toggle: If given, specifies which toggle block controls whether this BC is active or not.

Parameter	Value	Default
DofName	string	–
{of}	{of \| species \| subindex}	–
SpeciesName	string	–
{in}	{in \| material_phase}	–
MaterialPhaseName	string	–
{ls}	{levelset_phase \| ls}	–
MeshExtent	string	–
power_output	“string”	–
flux_output	“string”	–
toggle	“string”	–
variable	“string”	–
constant	real	0
multiplier	real	1
exponent	real	–