Performance evaluation of mixed convection in an inclined square channel with uniform temperature walls |
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| Authors: | Koichi Ichimiya Yasuhiro Matsushima |
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| Affiliation: | 1. Graduate Aerospace Laboratories (GALCIT), California Institute of Technology, Pasadena, CA 91125, USA;2. UPR 3346 CNRS, ISAE-ENSMA, Institut Pprime, 86961 Futuroscope-Chasseneuil Cedex, BP 40109, France;1. School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China;2. School of Aerospace Engineering, Tsinghua University, Beijing 100084, China;1. NASA Glenn Research Center, Cleveland, OH 44135, United States;2. USRA, Cleveland, OH 44135, United States;3. Purdue University, West Lafayette, IN 47907-2040, United States |
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| Abstract: | Numerical analyses were performed for the effect of inclined angle on the mixing flow in a square channel with uniform temperature walls (Tw = 30 °C) and inlet temperature (T0 = 10 °C). Three-dimensional governing equations were solved numerically for Re = 100, Pr = 0.72 and various inclined angles (from ?90° to 90°). Three-dimensional behavior of fluid in a channel was examined for each angle. Thermal performance was evaluated using the relationship between Nusselt number ratio and pressure loss ratio with and without buoyancy induced flow as a parameter of inclined angles. High heat transfer and low pressure loss region was from ?15° to ?60° in thermal performance using mean Nusselt number ratio. |
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