Direct Measurement of Turbulent Shear
Fluid Dynamics
2011-10-11 v2 Chaotic Dynamics
Abstract
A photon correlation method is introduced for measuring components of the shear rate tensor in a turbulent soap film. This new scheme, which is also applicable to three-dimensional flows, is shown to give the same results as Laser Doppler velocimetry, but with less statistical noise. The technique yields the mean shear rate s, its standard deviation, and a simple mathematical transform of the probability density function P(s) of the shear rate itself.
Keywords
Cite
@article{arxiv.1009.2462,
title = {Direct Measurement of Turbulent Shear},
author = {Stefanus Stefanus and Stanley Steers and Walter Goldburg},
journal= {arXiv preprint arXiv:1009.2462},
year = {2011}
}