Anisotropic fluctuations in turbulent sheared flows
Chaotic Dynamics
2009-11-10 v1 Classical Physics
Fluid Dynamics
Abstract
An experimental analysis of small-scales anisotropic turbulent fluctuations has been performed in two different flows. We analyzed anisotropic properties of an homogeneous shear flows and of a turbulent boundary layer by means of two cross-wire probes to obtain multi-point multi-component measurements. Data are analyzed at changing inter-probe separation without the use of Taylor hypothesis. The results are consistent with the ``exponent-only'' scenario for universality, i.e. all experimental data can be fit by fixing the same set of anisotropic scaling exponents at changing only prefactors, for different shear intensities and boundary conditions.
Cite
@article{arxiv.nlin/0402054,
title = {Anisotropic fluctuations in turbulent sheared flows},
author = {Boris Jacob and Luca Biferale and Gaetano Iugo and Carlo Massimo Casciola},
journal= {arXiv preprint arXiv:nlin/0402054},
year = {2009}
}
Comments
11 pages, 8 figures