Thermal convection with shear at high Rayleigh number

Thermal convection with shear at high Rayleigh number

Andrew P. Ingersoll Journal of Fluid Mechanics / Volume 25 / Issue 02 / June 1966, pp 209 ­ 228 DOI: 10.1017/S0022112066001617, Published online: 28 March 2006 Link to this article: http://journals.cambridge.org/abstract_S0022112066001617 How to cite this article: Andrew P. Ingersoll (1966). Thermal convection with shear at high Rayleigh number. Journal of Fluid Mechanics, 25, pp 209­228 doi:10...

Large eddy simulations of turbulent thermal convection at high Rayleigh number

High-Rayleigh-number convection in a fluid-saturated porous layer

By JESSE OTERO, LUBOMIRA A. DONTCHEVA, HANS JOHNSTON, RODNEY A. WORTHING, ALEXANDER KURGANOV, GUERGANA PETROVA AND CHARLES R. DOERING 3,7 Department of Mathematics, Ohio State University, Columbus, OH 43210, USA Department of Computer Science & Engineering, University of Washington, Seattle, WA 98195-2350, USA Department of Mathematics, University of Michigan, Ann Arbor, MI 48109-1109, USA Brea...

High Rayleigh number convection in a three-dimensional porous medium

High-resolution numerical simulations of statistically steady convection in a threedimensional porous medium are presented for Rayleigh numbers Ra 6 2 × 104. Measurements of the Nusselt number Nu in the range 1750 6 Ra 6 2× 104 are well fitted by a relationship of the form Nu= α3Ra+ β3, for α3= 9.6× 10−3 and β3= 4.6. This fit indicates that the classical linear scaling Nu∼ Ra is attained, and t...

Multifractal nature of plume structure in high Rayleigh number convection

The geometrically different plan forms of near wall plume structure in turbulent natural convection, visualised by driving the convection using concentration differences across a membrane, are shown to have a common multifractal spectrum of singularities for Rayleigh numbers in the range 10 − 10 at Schmidt number of 602. The scaling is seen for a length scale range of 2 and is independent of th...