Evolution of geometric structures in intense turbulence

Details Evolution of geometric structures in intense turbulence Evolution of geometric structures in intense turbulence

2007-08-29

arxiv.org/abs/0708.3955v3

Physics

Fluid Dynamics

10 pages, 6 figures, added more details

Scientific paper

10.1088/1367-2630/10/1/013012

We report measurements of the evolution of lines, planes, and volumes in an intensely turbulent laboratory flow using high-speed particle tracking. We find that the classical characteristic time scale of an eddy at the initial scale of the object considered is the natural time scale for the subsequent evolution. The initial separation may only be neglected if this time scale is much smaller than the largest turbulence time scale, implying extremely high turbulence levels.

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