TURBULENT MIXING
- 1 January 2005
- journal article
- Published by Annual Reviews in Annual Review of Fluid Mechanics
- Vol. 37 (1), 329-356
- https://doi.org/10.1146/annurev.fluid.36.050802.122015
Abstract
▪ Abstract The ability of turbulent flows to effectively mix entrained fluids to a molecular scale is a vital part of the dynamics of such flows, with wide-ranging consequences in nature and engineering. It is a considerable experimental, theoretical, modeling, and computational challenge to capture and represent turbulent mixing which, for high Reynolds number (Re) flows, occurs across a spectrum of scales of considerable span. This consideration alone places high-Re mixing phenomena beyond the reach of direct simulation, especially in high Schmidt number fluids, such as water, in which species diffusion scales are one and a half orders of magnitude smaller than the smallest flow scales. The discussion below attempts to provide an overview of turbulent mixing; the attendant experimental, theoretical, and computational challenges; and suggests possible future directions for progress in this important field.Keywords
This publication has 100 references indexed in Scilit:
- Langmuir circulations beneath growing or decaying surface wavesJournal of Fluid Mechanics, 2002
- Turbulent transport from continuous sources at the wall of a channelInternational Journal of Heat and Mass Transfer, 2002
- Kolmogorov two-thirds law by matched asymptotic expansionPhysics of Fluids, 2002
- On an instability to Langmuir circulations and the role of Prandtl and Richardson numbersJournal of Fluid Mechanics, 2001
- On the pseudomomentum and generalized Stokes drift in a spectrum of rotational wavesJournal of Fluid Mechanics, 2001
- Transport of a passive scalar in a turbulent channel flowInternational Journal of Heat and Mass Transfer, 1997
- The formation of vortex ringsPhysics of Fluids, 1988
- The statistics of the organized vortical structure in turbulent mixing layersPhysics of Fluids, 1988
- Measurements of a conserved scalar in turbulent jet diffusion flamesSymposium (International) on Combustion, 1979
- On the effect of the molecular diffusivity in turbulent diffusionJournal of Fluid Mechanics, 1960