A theoretical model for horizontal convection at high Rayleigh number
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چکیده
منابع مشابه
The Critical Rayleigh Number in Horizontal Convection for Pr = 1
We report the numerical simulations of the horizontal convection within a rectangle cavity tank at high Rayleigh numbers. The physical solution of horizontal convection depends on the spatial resolution of the meshes. The necessary mesh number N is proportion to Ra. The unstable numerical solutions are obtained asN < cRa. This power law also implies that the spatial resolution is dominated by v...
متن کاملThermal 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...
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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...
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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...
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Free convection cooling of isothermal circular cylinders positioned above a horizontal plane is investigated numerically, using a commercial Computational Fluid Dynamics (CFD) software package. Computation is performed for high Rayleigh number, in the range 10 − 10. Chien’s turbulence model of low-Reynolds-number K-ε is used, with Prandtl number of 0.707, corresponding to air near standard cond...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2007
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112007005630