Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
823775 | Comptes Rendus Mécanique | 2014 | 7 Pages |
Abstract
Turbulent boundary layer separation induced by a salient ramp and a smooth-edge one are characterized. Upstream from the separation point, the momentum thickness Reynolds number Reθ≈3500Reθ≈3500. Pressure distribution and gradient pressure distribution are analyzed on the overall model. Upstream from the ramp, boundary layer is characterized using hot-wire anemometry. Recirculation zone and unsteady behavior of separation point are evaluated using a PIV system. The shear layer roll-up and vortex shedding times scales obtained with cross hot-wire anemometry show good agreements with the literature. This study is a step toward the development of a robust control strategy undertaken in the frame of the ANR SePaCode project (2011–2014).
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Authors
Antoine Debien, Sandrine Aubrun, Nicolas Mazellier, Azeddine Kourta,