Imposing virtual origins on the velocity components in direct numerical simulations
International Journal of Heat and Fluid Flow(2020)
Abstract
•Methods to impose virtual origins on the velocities in turbulent direct simulations are studied.•Robin conditions for all three components are identified as a suitable method to impose such origins.•The origin for near-wall turbulence is controlled by the spanwise and wall-normal virtual origins.•The origin for the mean velocity profile, in turn, is set by the streamwise origin.
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Key words
Turbulent boundary layers,Turbulence simulations,Flow control
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