Combined free and forced laminar convection in triangular ducts.
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概要
- 論文の詳細を見る
A numerical method using the finite difference techniques for a triangular coordinates system is presented for flow and heat transfer problems of fully developed combined free and forced laminar convection in arbitrary triangular ducts, where the boundary condition with the axially uniform wall heat flux and the peripherally uniform wall temperature is taken into consideration. The numerical examples are carried out for horizontal isosceles and inclined equilateral triangular ducts. For the horizontal isosceles triangular ducts, correlative relationships with respect to fRe/(fRe)0 vs. ReRaPr and Nu/Nu0 vs. ReRaPr at Pr=0.73 are obtained for various vertex angles, where subscript 0 signifies the value of pure forced convection. Additionally, the influence of those relationships by Pr is examined. For inclined equilateral ducts with upward flow, fRe and Nu are correlated with the two modified parameters, Ra* and Re*, implicitly including an inclination angle. Furthermore, the influence of rotation and inclination angles on fRe and Nu is shown for equilateral triangular ducts.
- 公益社団法人 化学工学会の論文
著者
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HIRAOKA Setsuro
Department of Applied Chemistry, Nagoya Institute of Technology
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Yamada Ikuho
Department Of Applied Chemistry Nagoya Insitute Of Technology
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Nakamura Hajime
Department Of Biological Responses Institute For Virus Research Kyoto University
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Matsuura Akihiro
Department Of Animal Science School Of Veterinary Medicine Kitasato University
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MATSUURA AKIHIRO
Department of Mechanical Engineering, Daido Institute of Technology
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KIWAKI JUMEI
Department of Mechanical Engineering, Daido Institute of Technology
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YAMADA IKUHO
Department of Industrial Chemistry, Nagoya Institute of Technology
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NAKAMURA HAJIME
Department of Mechanical Engineering, Daido Institute of Technology
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