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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.
Monthly 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. The following section lists the most critical issues fixed starting in March 2024.
March 2025 critical fixes
March 2025 fixes were published on 19 March 2025. All critical fixes listed here were fixed for versions 2412.6 and 2406.10 unless otherwise noted.

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, 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.
- Monthly 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. The following section lists the most critical issues fixed starting in March 2024.
  - April 2025 critical fixes
    April 2025 fixes were published on 16 April 2025.
  - March 2025 critical fixes
    March 2025 fixes were published on 19 March 2025. All critical fixes listed here were fixed for versions 2412.6 and 2406.10 unless otherwise noted.
  - February 2025 critical fixes
    February 2025 fixes were published on 20 February 2025. All critical fixes listed here were fixed for versions 2412.5, 2406.9 unless otherwise noted.
  - January 2025 critical fixes
    January 2025 fixes were published on 22 January 2025. All critical fixes listed here were fixed for versions 2412.3, 2406.8 unless otherwise noted.
  - December 2024 critical fixes
    December 2024 fixes were published on 17 December 2024.
  - November 2024 critical fixes
    November 2024 fixes were published on 12 November 2024.
  - October 2024 critical fixes
    October 2024 fixes were published on 23 October 2024.
  - September 2024 critical fixes
    September 2024 fixes were published on 19 September 2024.
  - August 2024 critical fixes
    August 2024 fixes were published on 21 August 2024. All critical fixes listed here were fixed for versions 2412.0, 2406.4, 2312.8, 2306.13 unless otherwise noted.
  - July 2024 critical fixes
    July 2024 fixes were published on 10 July 2024. All critical fixes listed here were fixed for versions 2412.0, 2406.2, 2312.7, 2306.12 unless otherwise noted.
  - June 2024 critical fixes
    June 2024 fixes were published on 25 June 2024. All critical fixes listed here were fixed for versions 2412.0, 2406.1, 2312.6, 2306.11 unless otherwise noted.
  - April 2024 critical fixes
    April 2024 fixes were published on 16 April 2024. All critical fixes listed here were fixed for version 2406.0 unless otherwise noted.
  - March 2024 critical fixes
    March 2024 fixes were published on 12 March 2024. All critical fixes listed here were fixed for versions 2406.0, 2312.4, 2306.9 unless otherwise noted.
- 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.
- 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.

March 2025 critical fixes

March 2025 fixes were published on 19 March 2025. All critical fixes listed here were fixed for versions 2412.6 and 2406.10 unless otherwise noted.

Bug 101731: The post-processing results for Transmitted Radiative Flux are missing and are incorrectly included in the Reflected Radiative Flux results for radiative heating (IR spectrum) and orbital heating (PLANET IR)

Fixed versions: 2412.7, 2406.11

The results for transmitted radiative flux for the IR spectrum, covering both radiative heating and orbital heating (PLANET IR), were previously missing from post-processing. They were incorrectly included with reflected radiative flux results. This issue has now been corrected.

Bug 102866: Monte Carlo and GPU computed ray tracing produce incorrect radiosity results

Fixed version: 2412.6, 2406.11

The post-processing results for radiosity flux were inaccurate when using either Monte Carlo or GPU computed ray tracing. The radiosity data was correct exclusively when Oppenheim elements were employed by the software; otherwise, the surface was improperly treated as a black body in the computation. This issue has now been corrected.

Bug 103231: Heat maps reports display incorrect values for the element CG method and finite element method when element labels exceed twice the number of elements in the model

A software bug affecting models utilizing the element CG or finite element methods for heat maps reports was identified. The issue occurred when the external labeling of the model exceeded twice the number of elements within the model, which triggered a memory override and led to the omission of certain heat flows between groups in the report. This problem has now been resolved.

Bug 104485: Add support in the thermal solver for Intel's Performance Hybrid Architecture having Performance-cores (P-cores) and Efficient-cores (E-cores)

With the introduction of the new hybrid CPU architecture featuring E-cores and P-cores, significant software slowdowns were observed, particularly during parallel simulations on Windows systems. This problem occurred because the Windows Task Scheduler might allocate processes to an E-core by default, resulting in slower performance. To resolve this issue, a fix was implemented to ensure that executables are assigned to a P-core first, if available, before being assigned to an E-core. This adjustment optimizes simulation runtime.