Computational Fluid Dynamics (CFD)

The reduced initial expenditure makes CFD ideal for preliminary configuration studies. In conjunction with experimental data validation, CFD allows also detailed flow analysis in the design envelope which may not be entirely covered by wind tunnel testing. By using the synergies between numerical and experimental methods under one roof we will reduce your development time and solidify the engineering results.

In collaboration with RUAG Aviation’s subsidiary CFS Engineering, a wide range of applications are covered with numerical simulations; from very low speeds (HVAC) up to hypersonics (reentry), steady state calculations and time resolved, including dynamic fluid structure interaction (FSI).


There is no “silver bullet” in numerical flow simulation. To generate accurate results over the different aerodynamic regimes covered by our simulation capabilities, different solvers have to be used, each having its strengths and weaknesses.  This leads to a mix of structured and unstructured solvers, based on Navier Stokes as well as Lattice Boltzmann approaches:

  • NSMB (inhouse code developed by CFSE, RANS, structured)
  • OpenFOAM (open source, RANS, unstructured)
  • SU2 (open source, RANS, unstructured)
  • XFlow (commercial, LBM)