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NATURAL CONVECTION IN A STRATIFIED FLUID BETWEEN CONFOCAL HORIZONTAL ELLIPTICAL CYLINDERS

 

作者: W. C. Schreiber,   S. N. Singh,  

 

期刊: Numerical Heat Transfer  (Taylor Available online 1987)
卷期: Volume 11, issue 2  

页码: 183-197

 

ISSN:0149-5720

 

年代: 1987

 

DOI:10.1080/10407788708913549

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Natural convection in a stratified fluid enclosed within an annulus formed by confocal elliptical cylinders is examined analytically. The flow modeled is two-dimensional, laminar, incompressible, and steady state. Except for the Boussinesq approximations for density, fluid properties are constant. Stratification is modeled by assigning a variable temperature profile to the outer cylinder. The inner cylinder is isothermal. Either thermally stable or thermally unstable stratification is modeled by assigning either positive or negative values of the steepness parameter S. The effects of the varying RaLand e, the eccentricity of the inner cylinder, are also examined. The results are presented in terms of fluid flow patterns, isotherms, and graphs of shear stress and local Nusselt numbers on the plate's surface for various values of the angle of orientation, α,

 

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