High-Rayleigh-Number Convection in a Vertical Channel
نویسندگان
چکیده
منابع مشابه
Numerical Solution of Natural Convection in a Vertical Channel.
Natural convection between vertical parallel plates occurs frequently in applications such as solar collectors and cooling of electronic instruments. The problem is a two dimensional developing buoyant flow. In this work, the two dimensional conservation equations are solved numerically for constant wall temperature and constant wall heat flux. The results for the local Nusselt number at the du...
متن کاملNumerical Solution of Natural Convection in a Vertical Channel.
Natural convection between vertical parallel plates occurs frequently in applications such as solar collectors and cooling of electronic instruments. The problem is a two dimensional developing buoyant flow. In this work, the two dimensional conservation equations are solved numerically for constant wall temperature and constant wall heat flux. The results for the local Nusselt number at the du...
متن کاملHigh-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...
متن کاملHigh 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...
متن کاملConvection in a vertical channel
The flow generated by heat convection in a long, vertical channel is studied by means of particle imagery velocimetry techniques, with the help of the thermal measurements from a previous paper (Gibert et al 2009 Phys. Fluids 21 035109). We analyse the mean velocity profiles and the Reynolds stresses, and compare the present results with the previous ones obtained in a larger cell and at a larg...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.96.084501