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Mixed convection in a horizontal rectangular duct heated from below

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  • C. Abid
  • M. Medale
  • F. Papini
  • P. Cerisier

Abstract

This paper deals with a mixed convection flow in a horizontal rectangular duct of transversal aspect ratio close to two, uniformly heated from below and thermally insulated elsewhere. The working fluid is water (Pr = 6) and the Reynolds number associated with the main flow is small (Re = 20). The heat flux supplied to the wall induces a secondary flow which manifests itself through natural convective rolls. This study has been conducted simultaneously via two ways: an experimental approach which enables us to investigate a large range of the two main control parameters (Reynolds and Rayleigh numbers) and a numerical analysis which permits us to obtain detailed local and global descriptions of the fluid flow and heat transfer throughout the whole computational domain. Copyright , Manchester University Press.

Suggested Citation

  • C. Abid & M. Medale & F. Papini & P. Cerisier, 2006. "Mixed convection in a horizontal rectangular duct heated from below," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 1(3), pages 236-244, July.
    • Handle: RePEc:oup:ijlctc:v:1:y:2006:i:3:p:236-244
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    File URL: http://hdl.handle.net/10.1093/ijlct/1.3.236
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