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Thermal-Flow
Contains general thermal and flow solver related documentation, such as the verification test cases, monthly critical fixes, DMP guide, and knowledge base articles.
Updating the TMG solver patch
You can update the TMG solver patch for the thermal-flow solver by manually replacing the solver files or by using the appropriate environment variable.
Update the TMG solver patch manually
Use this method to replace the TMG solver files in the installation.

Thermal-Flow
Contains general thermal and flow solver related documentation, such as the verification test cases, monthly critical fixes, DMP guide, and knowledge base articles.
- TMG thermal-flow solvers
  Maya HTT develops and maintains a thermal solver and a flow solver, which are combined into the TMG thermal-flow solvers. These solvers are included and distributed with Simcenter 3D, NX Designcenter, and Simcenter Femap. Older versions of TMG thermal-flow solvers are also included in NX I-deas.
- Thermal and flow verification test cases
  Contains verification test cases for the thermal and flow solvers.
- Updating the TMG solver patch
  You can update the TMG solver patch for the thermal-flow solver by manually replacing the solver files or by using the appropriate environment variable.
  - Update the TMG solver patch manually
    Use this method to replace the TMG solver files in the installation.
  - Use a TMG solver patch from a separate location
    Use this method to keep the TMG solver patch in the installation unchanged and load the patched solver from a separate location.
- TMG Executive Menu
  TMG Executive Menu is a standalone application that lets you execute processes on thermal-flow files and solutions independently of Simcenter 3D or Simcenter Femap.
- Thermal and flow DMP guide
  Describes the general workflow for executing the simulation jobs using distributed memory parallel processing on clusters and the scheduler-dependent files required to submit the jobs to the scheduler.
- Solver supported compilers per version
  For each released version of the TMG thermal-flow solvers, the following table lists the compiler version that you can use when you compile your subroutine, thermal solver plugin function for expressions, or flow solver plugin function.
- Solver supported GPU cards per version
  The following table lists the supported graphics processing unit (GPU) requirements for accelerated thermal radiation computation by solver version.
- Thermal-flow data exchange files
  The thermal and flow solvers in Simcenter 3D and Simcenter Femap create multiple thermal-flow data exchange files described on the following page.
Thermal Solver
Contains thermal solver related guides, such as the TMG reference manual, thermal solver customization guide, and error message list.
Flow Solver
Contains flow solver related guides, such as the reference and customization guides.
TMG Critical Fixes
Maya HTT strives to release the best thermal-flow solver by continually updating and fixing critical issues and releasing monthly updates to the solver.
Legal notice

Update the TMG solver patch manually

Use this method to replace the TMG solver files in the installation.

Note:

If UGII_TMG_DIR points to a separate solver location, remove that override or set UGII_TMG_DIR to <Simcenter 3D installation>\THERMALFLOW\tmgsolver so that restarting uses the solver updated by this procedure.

From the Simcenter 3D Add Ons downloads page on Siemens Support Center, download the latest TMG solver patch.
Close and make sure that no solver processes are running.
In the installation directory, locate the current TMG solver folder: <Simcenter 3D installation>\THERMALFLOW\tmgsolver
To preserve the currently installed version, rename the existing tmgsolver folder, for example, to tmgsolver_old.

Note:
Do not delete this folder. You can use it to restore the previous TMG version if necessary.
Extract the downloaded TMG patch to a temporary location.
The extracted package contains a tmg folder.
In the <Simcenter 3D installation>\THERMALFLOW\ directory, create a new tmgsolver folder.
Copy the contents of the extracted tmg folder into the new tmgsolver folder.

The tmgsolver folder must directly contain the files and subfolders from the downloaded tmg folder.

CAUTION:
Do not create an additional tmg folder level: <Simcenter 3D installation>\THERMALFLOW\tmgsolver\tmg\... will not be able to start the thermal-flow solver.

If the patch instructions in README.txt require updating the integration components, update the applicable files under <Simcenter 3D installation>\NXCAE_EXTRAS\tmg according to the instructions provided with the patch.
Start .
To verify that the expected TMG version and solver location are being used, run a small thermal-flow solution and check the information in the solution log file.