Global ETD Search
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Showing 1 to 3 of 3 for “"virtual origins"”.
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Control of the buffer and logarithmic layers in wall-bounded turbulent flows
… near-wall turbulence of displacing the apparent, virtual origins perceived by different components of the overlying flow. This mechanism is commonly reported for drag-altering textured surfaces of small size. For the particular case of riblets, it has been proposed that their effect on the …
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The influence of superhydrophobic surfaces on near-wall turbulence
… flow is governed by the difference between two virtual origins, the virtual origin of the mean flow and the virtual origin experienced by the overlying turbulence. Streamwise slip deepens the virtual origin of the mean flow, while spanwise slip acts to deepen the virtual origin perceived by the …
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Turbulent drag reduction by anisotropic permeable substrates
… be reduced to an offset between the apparent, virtual smooth wall perceived by the mean flow and that perceived by the overlying turbulence, but turbulence remains otherwise smooth-wall-like. The drag reduction produced by these surfaces is therefore proportional to the difference between the …