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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 reference
Describes the format and contents of the thermal solver's input and output files
Thermal solver input and output files
The thermal solver generates several data exchange files during the solve when using supported CAE software.
Thermal solver flowchart
This flowchart outlines steps and processes that the thermal solver uses to solve a thermal model using a supported CAE software.

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 reference
  Describes the format and contents of the thermal solver's input and output files
  - Introduction
    In most situations, a thermal model can be defined and solved directly within your CAE software. The thermal model is built using the software's interface, and the results can then be displayed and analyzed using its built-in post-processing tools.
  - Thermal solver input cards
    To access thermal solver features outside your CAE software, you must manually input instructions and data into the thermal solver’s input file also known as the data deck using any text editor.
  - Thermal solver input and output files
    The thermal solver generates several data exchange files during the solve when using supported CAE software.
    - Thermal solver flowchart
      This flowchart outlines steps and processes that the thermal solver uses to solve a thermal model using a supported CAE software.
    - Thermal solver files
      The thermal solver writes the following thermal solver files in the run directory during the solving process.
  - Thermal solver modules
    The following table describes the thermal solver modules that are executed during the solving process. This section also consists of additional information about some of these modules.
  - Post-processing libraries
    The thermal solver provides the following post-processing libraries for generating results files.
  - Thermal solver bibliography
    The following bibliography lists all sources used to explain how the thermal solver works.
- Thermal solver theory
  Describes the theory and methods of the thermal solver.
- Thermal solver API
  Allows you to create or add functionality to enhance the thermal solver capabilities.
- Thermal solver error message list
  Lists solver messages that the thermal solver generates to communicate issues with the model or the solve.

Thermal solver flowchart

This flowchart outlines steps and processes that the thermal solver uses to solve a thermal model using a supported CAE software.


Step	Input file	Executable module	Output file
1.	INPF	MAIN Data checking, determines modules to be run.	<simulation/model name>-<solution/analysis name>_verbose.log
2.	INPF	DATACH Data checking, orbit creation.	<simulation/model name>-<solution/analysis name>_verbose.log <simulation/model name>-<solution/analysis name>_report.log tmggeom.dat
3.	INPF tmggeom.dat	ECHOS Geometry parameter calculations.	VUFF tmggeom.dat
4.	INPF tmggeom.dat	COND Calculates capacitances, hydraulic resistances, and conductive conductances from geometry (optional).	MODLF tmggeom.dat
5.	INPF tmggeom.dat	VUFAC Calculates view factors, solar view factors, albedo factors, Earth view factors, heat flux view factors, thermal couplings from geometry (optional).	MODLF VUFF <simulation/model name>-<solution/analysis name>_verbose.log <simulation/model name>-<solution/analysis name>_report.log
6.	INPF VUFF tmggeom.dat	GRAYB Calculates radiative conductances, gray body view factor matrices from view factors (optional).	VUFF MODLF tmggeom.dat
7.	VUFF INPF tmggeom.dat	POWER Calculates IR and solar spectrum heat loads from view factors and gray body view factor matrices (optional)	VUFF MODLF
8.	INPF MODLF tmggeom.dat	MEREL Model simplification, merging, substructuring, combines parameters calculated from geometry and defined on Card 9.	<simulation/model name>-<solution/analysis name>_report.log MODLCF tmggeom.dat
9.	USER1 MODLCF tmggeom.dat	ANALYZER Calculates temperatures and total pressures.	<simulation/model name>-<solution/analysis name>_report.log TEMPF PRESSF tmggeom.dat
10.	INPF MODLCF	REFORM Creates SINDA and TRASYS format models.	FMODLF
11.	tmgrslt.dat tmggeom.dat	RSLTPOST Transforms results into I-deas universal file or binary university format.	Multiple <name>.unv files or one <name>.bun
11.		POST lib Writes results into binary universal format.	<name>.bun