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"Transition control in three-dimensional flows by means of distributed Micron-Sized Roughness-elements (MSR) has been under focus during the last decade. The successful experiments of Prof. Saric and his research group have created lot of attentions and interest. In the reported work by Saric et al. always a significant positive effect of MSR on delay of transition has been observed. Similar attem ...

"Proposed work aims at developing efficient optimization tools for NLF design where the cost function is the total drag (pressure and friction). The tool utilizes efficient and accurate computation of gradients of objective functions as well as robust parametrization of the geometry. Our approach uses Computational Fluid Dynamics followed by accurate boundary-layer stability analysis in order to f ...