History effects in adverse pressure gradient turbulent boundary layers

Abstract eng:
The present investigation focusses on the concerted investigation of pressure gradient and streamwise curvature effects on turbulent boundary layers. In particular, a number of direct and large-eddy simulations covering a wide range of pressure gradient parameters and streamwise histories on flat and curved surfaces is performed and will be compared with wind tunnel experiments that overlap and extend the Reynolds number range. Results are aimed at isolating the effects of pressure gradients, streamwise curvature and streamwise (pressure gradient) histories, which have traditionally inhibited to draw firm conclusions from the available data.

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