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Corner effects on shock-induced separation

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If you have a question about this talk, please contact Aleksandra Przydrozna.

The interaction of a shock wave with a turbulent boundary layer is one of the fundamental building blocks of compressible flows. It is particularly important to understand under what circumstances a shock wave can cause flow separation. Traditionally it has been believed that this is primarily determined by the shock Mach number with a mild secondary influence of the incoming boundary layer shape factor, but the data gathered over the last 50 years shows a remarkable amount of scatter. In this talk I will discuss whether the geometry of the flowfield (in particular the confinement due to limited wind tunnel size) may play a role and explain the scatter seen in experimental data. Some ideas for the physics of this ‘corner effect’ will be proposed and the wider implications will be discussed.

This talk is part of the Fluids Group Seminar (CUED) series.

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