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Thermal Solver
Contains thermal solver related guides, such as the TMG reference manual, thermal API guide, and error message list.
Thermal solver API guide
Allows you to create or add functionality to enhance the thermal solver capabilities.
User written subroutines
This section describes two types of user-written subroutines.
Interacting with the thermal solver
Accessing elements
Groups
Accessing groups

Thermal Solver
Contains thermal solver related guides, such as the TMG reference manual, thermal API guide, and error message list.
- Thermal solver guides
  Maya HTT's thermal solver is included in Simcenter 3D and in Simcenter Femap. This page contains links to thermal solver guides, which help you understand how the thermal solver works.
- Thermal solver theory
  Describes the theory and methods of the thermal solver.
- Thermal solver API guide
  Allows you to create or add functionality to enhance the thermal solver capabilities.
  - Introduction
  - Supported compilers
  - User written subroutines
    This section describes two types of user-written subroutines.
    - USER1 subroutine
    - Interacting with the thermal solver
      - Accessing elements
        Groups
        Accessing groups
        Naming groups
        Element labels
      - Accessing element properties and geometry
      - Modifying thermal data
      - Getting user values
      - Add conductances
      - Access to files
        You can access all files from USER1. The following table lists file pre-assigned numbers.
    - USERF subroutine
    - Specific examples
    - Subroutine and function definitions
    - Compiling, linking, and debugging
  - Plugin functions in expressions

Accessing groups

The contents of a group can be determined at run-time by calling the subroutine NAMAR. This fills an array with internal labels of elements that belong to the group. If the array is not large enough to contain the list, other memory will be overwritten during the call. Therefore, it is important to declare the array large enough and to check that the group size was within these bounds.

The contents of the group should be determined at initialization only. To preserve the contents of the array and associated variables between calls to USER1, use the FORTRAN SAVE statement.

It is possible to find a group that contains a particular element using the function NAME. This routine searches an alphabetically sorted list of group names and returns the name of the first group that contains the element.