01-08-95 - 01-09-95 Visiting researcher, ICASE, NASA Langley VA, USA , fixed-term
01-09-97 - 20-09-99 Post-doc Center for Turbulence Research, Stanford University, Stanford CA, USA., fixed-term
Subject: Direct and Large Eddy simulation of complex turbulent flows, fixed-term
01-01-99 - present KNAW Fellow, Laboratory for Aero and Hydrodynamics, Delft University of Technology,
Computational Aero Acoustics , The Netherlands, fixed-term
01-07-00 - 01-08-00 Visiting scientist CTR/NASA-Ames Research center, Moffett Field CA, USA, fixed-term
01-08-02 - 01-09-02 Visiting scientist NASA-Ames Research center, Moffett Field CA, USA, fixed-term