Colloquium: Daniëlle de Jong (AWEP)

15 november 2019 13:30 - Locatie: Lecture Hall C, Faculty of Aerospace Engineering, Kluyverweg 1, Delft.

Detached Eddy Simulation applied to three-dimensional aerodynamic full car simulations in motorsport

Detached Eddy Simulation is investigated as a potential method to improve the design process in the Aerodynamic Prototype Development Department of Porsche Motorsport. Detached Eddy Simulation is a CFD method that combines the scale resolving capabilities of Large Eddy Simulation with the low cost modelling of RANS. The method promises to capture unsteady flow phenomena better than RANS with only a limited increase in costs. The actual performance of the method when simulating complex full car geometries is assessed and improved. This is done through comparison with various RANS results and wind tunnel data in the form of axial force data, pressure taps and PIV data. Three different cars are simulated to ensure the process can be used in the context of a design team. This leads to a set of recommendation for the usage of the new process that has been put in place.