Numerical Investigations of Laminar Separation Bubbles Under the Influence of Periodic Gusts

What is it about?

The behavior of laminar separation bubbles, which can occur in airfoil flows, is already very well investigated for steady-state conditions. In this study, such a separation bubble was exposed to periodic gusts. Various transient effects in the boundary layer could be identified. For the investigations, a hybrid approach with URANS simulations in combination with direct numerical simulation was used, which was validated with results from wind tunnel measurements.

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