Cade+simu+linux+work

Use this if you control the toolchain.

| Task | Software | Status | | :--- | :--- | :--- | | CAD | FreeCAD 0.21+ (with Realthunder branch) | Excellent – Parametric modeling works. | | Assembly | Ondsel (based on FreeCAD) | Good – Assembly 4 workbench is stable. | | Meshing | Gmsh or Salome | Native & Fast – Direct Linux I/O. | | Simulation | OpenFOAM (CFD) / CalculiX (FEA) | Industry Standard – Outperforms Windows by 15-20%. | | Post-Processing | Paraview | Best-in-class – Native Linux GPU rendering. |

Verdict: Fully functional for small-to-medium mechanical parts, thermal analysis, and aerodynamics. Not suitable for complex surface modeling (auto/aero). cade+simu+linux+work

To: Engineering Management / IT Department From: Technical Workstation Team Subject: Viability and implementation strategy for running CAD + Simulation (FEA/CFD) natively on Linux.

VirtualBox is a virtualization software that allows you to run Windows on top of Linux. You can install VirtualBox on your Linux system, create a Windows virtual machine, and then install CADE Simu. Use this if you control the toolchain

Step-by-step guide:

Simulation solvers open thousands of files simultaneously. The default Linux limit is usually too low (1024). Edit /etc/security/limits.conf: You must reboot after this change

*    hard    nofile    65535
*    soft    nofile    65535

You must reboot after this change.

Ensure your CPU runs at maximum performance, not power-saving mode.

# Check current mode
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
Wine is a compatibility layer that allows you to run Windows applications on Linux. You can install Wine on your Linux system and then install CADE Simu using the Wine installer.
Step-by-step guide: