OpenFOAM+CalculiX FSI using preCICE

Coupled multi-physics simulations are essential for capturing complex interactions between fluid flow and structural response in engineering systems. In this project, OpenFOAM was used for computational fluid dynamics (CFD) and CalculiX for structural mechanics, coupled through the preCICE framework. A pipe flow case was studied, where fluid forces from the internal flow were transferred to the structural solver, and structural deformation was fed back to the fluid solver. This setup enables a realistic analysis of fluid–structure interaction (FSI), providing insights into deformation and flow behavior under coupled conditions