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General Requirements        

Operating System

  • 64-bit Windows 10 or 11

Minimum Memory

  • 32GB RAM (64GB recommended)


Since SINDA/FLUINT allows user logic and generates a unique executable each time it is run, you MUST have a copy of the correct compiler.        
Prerequisite Software

  • Fortran Compiler
    • The following compilers are compatible with CRTech software
      • 2024 R1: Intel Fortran Compiler Classic 2024 or newer
      • 2023 R2: Intel Fortran Compiler Classic 2023 or newer
      • V6.3: Intel Fortran Compiler Classic 2021 or newer
    • The Intel compiler requires one of the following, with support for C++ enabled
      • Build Tools for Visual Studio 2022 or newer
  • See Fortran Compiler compatibility with all recent versions of SINDA/FLUINT


  • Storage
    • Basic: Local or network drive required for running case sets. Cloud storage is not supported due to the read/write operations required by the solution engine.
    • Recommended: Solid State Drive (SSD) for better performance.

Thermal Desktop®, RadCAD®, and FloCAD®

Prerequisite Software

  • SINDA/FLUINT, which is the solution engine, must be installed
  • CAD Package
    • AutoCAD® standard version is required, AutoCAD LT is not compatible.
    • See AutoCAD compatibility with all recent versions of Thermal Desktop
  • Hardware
    • Discrete Graphics Card
      • Basic: 1GB GPU with 29 GB/s bandwidth and Direct 11 compliant
      • Recommended: 4GB GPU with 106 GB/s Bandwidth and DirectX 12 compliant
    • Display resolution
      • Conventional Displays: 1920 x 1080 minimum or finer with 100% font size recommended​
      • High Resolution 4K displays: 3840 x 2160 (with capable display card)

TD Direct®

Prerequisite Software


Prerequisite Software

  • Thermal Desktop v6.3 or newer
  • CAD Package: AutoCAD 2019 or newer is required
  • Programming language
    • 2024 R1 requires ability to connect at runtime to a .NET 4.8 dll
    • 2023 R2 requires ability to connect at runtime to a .NET 4.8 dll
    • V6.3 requires ability to connect at runtime to a .NET 4.6 dll
    • Examples of suitable programming languages are:
      • C# / VB.NET / F# via Visual Studio or Microsoft Build Tools
      • PowerShell
      • MATLAB
      • Python