Conditional averages of a Re_tau=1000 channel-flow database corroborate Lighthill's vorticity-concentration mechanism throughout the log layer and attribute vorticity transport to hairpin eddies for outflows and 'shawl vortices' for inflows.
2025 Vorticity dynamics and drag for flows over a sphere and a prolate spheroid
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Lighthill's mechanism and vorticity cascade in the logarithmic layer of wall turbulence
Conditional averages of a Re_tau=1000 channel-flow database corroborate Lighthill's vorticity-concentration mechanism throughout the log layer and attribute vorticity transport to hairpin eddies for outflows and 'shawl vortices' for inflows.