Diffusive transport in a Rayleigh-Bénard convection cell
- 1 July 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 36 (1) , 261-267
- https://doi.org/10.1103/physreva.36.261
Abstract
The effective diffusivity for a passive impurity in a steady convecting flow is calculated in the experimentally relevant limit of large Péclet number (p=vl/D). The expulsion of the concentration gradients from the region of closed stream lines leads to the enhancement of the diffusivity D by a factor of .
This publication has 17 references indexed in Scilit:
- Flow patterns and nonlinear behavior of traveling waves in a convective binary fluidPhysical Review A, 1986
- Taylor dispersion in concentrated suspensions of rotating cylindersJournal of Fluid Mechanics, 1986
- Traveling waves and chaos in convection in binary fluid mixturesPhysical Review Letters, 1985
- Transport effects associated with turbulence with particular attention to the influence of helicityReports on Progress in Physics, 1983
- Dispersion resulting from flow through spatially periodic porous mediaPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1980
- Asymptotic expansions for laminar forced-convection heat and mass transfer Part 2. Boundary-layer flowsJournal of Fluid Mechanics, 1966
- Asymptotic expansions for laminar forced-convection heat and mass transferJournal of Fluid Mechanics, 1965
- On the dispersion of a solute in a fluid flowing through a tubeProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1956
- Dispersion of soluble matter in solvent flowing slowly through a tubeProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1953
- Contributions to the theory of heat transfer through a laminar boundary layerProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1950