# 7.16.1.20.34. Lumped_Exponential

Syntax

  Source For Energy [{of} SpeciesName | {in} MaterialPhaseName | {ls} {a | b | c}] {@ | at | for | on | over} MeshPartIdentifier = Lumped_Exponential [Power_Output = power_output | Toggle = toggle | Variable = variable | Constant = constant | Multiplier = multiplier | Exponent = exponent]

Summary

  Value from an exponential function

Description

  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.

  Toggle

    If given, specifies which toggle block controls whether this BC is active or not.

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