Philip Ströer, Anthony D. Gardner, Kurt Kaufmann
, Institute of Aerodynamics and Flow Technology, German Aerospace Center (DLR), Göttingen
HPC Platform used:
SuperMUC and SuperMUC-NG of LRZ
Local Project ID:
Investigations of different approaches to transition modelling on rotors were undertaken, including comparison to experimental data and results of other European CFD codes. For flows at Reynolds numbers below 500,000 the transition transport models predict unphysically large areas of laminar flow compared to the experimental data. A new boundary layer transition model was developed to improve the transition prediction for a wide range of parameters crucial to external aerodynamics. The new model was implemented into the DLR TAU code and works on either structured or unstructured grids. The agreement of the new model with the experimental data is significantly improved compared to the results of the basic transition transport model.