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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 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.
TMG2ANS module information
The TMG2ANS module translates the TMG node temperature results from GTEMPF to ANSYS version 5 input files.

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 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.
    - ANS2TMG module information
      ANS2TMG translates Ansys models into thermal solver input files by merging Ansys and thermal solver data, creating necessary boundary conditions, and converting thermal elements and material properties.
    - GRAYB module information
      The GRAYB module crates the radiative conductances, the IR, solar spectrum, and gray body view factor matrices.
    - HEMIVIEW module information
      The HEMIVIEW module calculates diffuse blackbody view factors using the hemicube method, which allows computer graphics hardware to accelerate the calculations.
    - MEREL module information
      The MEREL module performers the model condensation by element merging or renumbering, automatic combination, substructuring, and model thinning.
    - NEVADA module information
      The NEVADA module converts a NEVADA input deck into an equivalent I-deas Universal file.
    - POWER module information
      The POWER module calculates IR and solar spectrum radiative heat loads from the orbital view factors, heat flux view factors, and view factors of the VUFF file.
    - REFORM module information
      The REFORM module transforms the conductance-capacitance model from the MODLCF file into SINDA or ESATAN formats, or the geometry model into TRASYS or NEVADA formats. The formatted models are written in the FMODLF file.
    - TMG2ANS module information
      The TMG2ANS module translates the TMG node temperature results from GTEMPF to ANSYS version 5 input files.
    - VUFAC module information
      The VUFAC module calculates view factors, orbital view factors (solar view factors, albedo view factors, Earth view factors), heat flux view factors, view factor for axisymmetric modeling with plane stress, and thermal couplings.
    - Comparison of view factor computation modules
      This page compares VFRTGPU to the HEMIVIEW and VUFAC modules.
    - Comparison between CONDN and COND modules
      The following list provides a brief comparison between the COND and CONDN conduction 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.

TMG2ANS module information

The TMG2ANS module translates the TMG node temperature results from GTEMPF to ANSYS version 5 input files.

TMG2ANS is accessed by running the TMG Executive Menu from operating system and selecting the AN switch.

You will be prompted for the output option. You can translate TMG node temperatures into either an ANSYS PREP7 command input file called bftemp.dat or an ANSYS POST1 command input file called dntemp.dat, or both.

The TMG node temperature result GTEMPF file must exist, if it does not you can generate it from the TMG element temperature result TEMPF file with the TMG model interpolator TMGINT.

For transient analysis results multiple dntemp files are written, with file extensions s01, s02 etc. Each file contains the result of a printout interval in the GTEMPF file.

TMG node temperatures are written as PREP BF commands on bftemp.dat to be input into the ANSYS FE model as a body force for subsequent ANSYS structural or other types of analyses.

At the end of BF commands, a PREP command LSWRITE is written.

For transient analysis a TIME command is written at each printout interval, followed by BF commands and an LSWRITE command. You can use a text editor to modify the ANSYS commands written in the bftemp.dat file.

TMG temperatures are written as DNSOL commands on dntemp.dat and dntemp.s01, dntemp.s02, etc. For transient analysis results the printout interval associated with each result set is written as ANSYS comments. The dntemp files can then be used by ANSYS for post-processing.