Stavros Tavoularis

TL;DR: In this paper, a reasonably uniform mean temperature gradient has been superimposed upon a nearly homogeneous turbulent shear flow in a wind tunnel, and measurements of several moments, one-and two-point correlation functions, spectra, integral scales, microscales, probability densities, and joint probability density of the turbulent velocities, temperature fluctuations, and temperature-velocity products are reported.

TL;DR: In this article, the authors measured the Reynolds stresses, integral length scales and Taylor microscales of uniformly sheared turbulent flows with shear values in a range substantially wider than those of previous measurements, and showed that such flows demonstrate a self-preserving structure, in which the dimensionless Reynolds stress ratios and the dissipation over production ratio, e/P, remain essentially constant.

TL;DR: In this paper, the authors present a flow visualization technique for measuring flow properties and basic principles, including flow velocity, flow pressure, and wall shear stress in a sound experiment.

TL;DR: In this article, the fine structure of the velocity and temperature fluctuation fields is investigated in nearly homogeneous sheared turbulence with a uniform mean temperature gradient, and the flatness factors of the derivatives and of band-passed, high-frequency signals indicate appreciable departures from normality, consistent with the spatially "spotty" fine structure.

TL;DR: In this paper, the authors studied the mixing of a passive scalar in nearly isotropic turbulence, experiments have been made in isotropically mixed thermal fields with thermal mesh sizes Mθ equal to the momentum mesh size M, larger than M (obtained by heating only alternate rods of the turbulence generating grid), and smaller than M.