Vortex tubes in velocity fields of laboratory isotropic turbulence
H. Mouri, A. Hori, Y. Kawashima
Abstract
The streamwise and transverse velocities are measured simultaneously in grid turbulence at Reynolds numbers 100-300. We extract typical intermittency patterns, which are consistent with velocity profiles of Burgers and Lamb-Oseen vortices. The radii of these vortex tubes are estimated to be several of the Kolmogorov length.
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