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Mechanisms of transition and heat transfer in a separation bubble. (English) Zbl 0972.76046
From the summary: The laminar boundary layer on a flat surface is made to separate by way of aspiration through an opposite boundary, causing approximately a \(25\%\) deceleration. The detached shear layer transits to turbulence, reattaches, and evolves towards a normal turbulent boundary layer. We perform the direct numerical simulation of this flow, and believe that a precise experimental repeat is possible. The pressure distribution and the Reynolds number based on bubble length are close to those on airfoils; numerous features are in agreement with experiments and correlations.

MSC:
76F40 Turbulent boundary layers
76F65 Direct numerical and large eddy simulation of turbulence
80A20 Heat and mass transfer, heat flow (MSC2010)
76M22 Spectral methods applied to problems in fluid mechanics
76F06 Transition to turbulence
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