Continuing with our efforts on understanding the effect of pressure gradient and curvature on turbulent wings, we have now constructed a database consisting of time and spatially resolved turbulence around wings at 4 Reynolds numbers, starting at the low Re=100k up to the (computationally high) 1M. This range, spanning one order of magnitude, allows us to appreciate the effect of the Reynolds number where the imposed pressure gradient is essentially constant. We find that the flow is progressively less susceptive to these effects, however, considerable differences to zero-pressure gradient boundary layers remain.
Simulation of turbulent wings at various Reynolds numbers
