`**volumetric_heat_in_file`#

Description#

The **volumetric_heat_in_file BC is used to impose a volumetric heat flux within a given element set, using input from a file.

This keyword replaces the now deprecated keyword **fluvol_in_file.

**volumetric_heat_in_file \(~\,~\,\) elset value file-prefix

elset: Character name for the element set (elset) within which the heat generation is applied.
value: Real base value for the heat flux. This value scales the current table value to obtain the heat flux magnitude.
file-prefix: pre-fix for the input file. The first file of concern is file-prefix.catalog, which lists the initial and final times for the file inputs (presumably from another time step of a mechanical problem, see below). Binary files for the beginning of the problem, start of an increment and end of an increment are: file-prefix.first file-prefix.initial file-prefix.final The current increment should be within the time bounds given in the catalog file.

***sub_problem fem MechTherm/plastic
 **transfer integ_nodeparam
  *variable q_dot
  *file     heat_out

In thermal.inp the heat is imported using the current BC:

**volumetric_heat_in_file
  ALL_ELEMENT 1.0 heat_out

An example of what’s in the catalog file is:

Time_ini 7.600000
Time  8.000000