Forced, natural and mixed-convection heat transfer and fluid flow in annulus: A review

作者: H.K. Dawood , H.A. Mohammed , Nor Azwadi Che Sidik , K.M. Munisamy , M.A. Wahid

DOI: 10.1016/J.ICHEATMASSTRANSFER.2015.01.006

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摘要: Abstract The enhancement of the thermal performance heat exchanging equipment transport energy at low financial cost by various techniques is presented in this review. Heat transfer classified into three forms, namely, conduction, convection, and radiation. Convection one major modes that can be qualified terms being natural, forced, gravitational, granular, or thermomagnetic. In past decade, several studies on convection annular pipes with nanofluids have been reported. effect eccentricity horizontal, inclined vertical directions rate most numerical experimental investigations for tubes studied. effects heater length, as well Darcy, Prandtl, Reynolds, Grashof Rayleigh numbers concentric eccentric are also investigated. This paper reviews researches fluid flow behavior an annulus. A basic description given. Numerical conducted according to annuli. Finally, conclusions important summaries collected data.

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