Experimental evidence of accelerated energy transfer in turbulence
Fluid Dynamics
2007-06-13 v2
Abstract
We investigate the vorticity dynamics in a turbulent vortex using scattering of acoustic waves. Two ultrasonic beams are adjusted to probe simultaneously two spatial scales in a given volume of the flow, thus allowing a dual channel recording of the dynamics of coherent vorticity structures. Our results show that this allows to measure the average energy transfer time between different spatial length scales, and that such transfer goes faster at smaller scales.
Keywords
Cite
@article{arxiv.physics/0607244,
title = {Experimental evidence of accelerated energy transfer in turbulence},
author = {R. Labbé and C. Baudet and G. Bustamante},
journal= {arXiv preprint arXiv:physics/0607244},
year = {2007}
}
Comments
5 pages, 5 figures