Laminar convection in wall sub-channels and transport rates for finite rod-bundle assemblies by superposition |
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| Authors: | A.K. Mohanty K.M. Sahoo |
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| Affiliation: | 1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, 430081 Wuhan, PR China;2. National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan University of Science and Technology, 430081 Wuhan, PR China;3. Hunan Saintly Technology Co., Ltd, 410021 Changsha, PR China;1. Department of Medical and Mechatronics Engineering, Soonchunhyang University, 22 Soonchunhyang-Ro, Asan, Chungnam 31538, South Korea;2. Department of Mechanical Engineering, Chosun University, 309 Pilmun-Daero, Dong-gu, Gwangju 61452, South Korea;1. School of Engineering and Technology, Asian Institute of Technology, Thailand;2. Construction and Maintenance Technology Research Center, School of Civil Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University, Thailand;3. Department of Civil Engineering, Rajamangla University of Technology, Thailand;4. School of Civil Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University, Thailand;1. Faculty of Physics, University Duisburg-Essen, Campus Duisburg, D-47048, Duisburg, Germany;2. Institute of Experimental Physics, Slovak Academy of Sciences, SK-04001, Košice, Slovakia;3. National High Technology Center of Georgia, Tbilisi 380086, GE-0100, Tbilisi, Georgia |
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| Abstract: | Finite rod-clusters in circular, square and hexagonal shells have been divided along the symmetry lines into a number of interior, wall and corner subchannels. Laminar fluid flow and heat transfer results have been generated for these subchannels with varying pitch-to-diameter and wall distance-to-diameter ratios. Wall shear stress and temperature variations for typical wall subchannels are presented. Friction factor values for finite bundles are then obtained by superposing the results of the subchannels that constitute the bundles. The values so generated are in excellent agreement with previous work in the literature obtained by the method of symmetry sectors. Considerable disagreements were, however, observed in the superposed values of Nusselt number, apparently due to conduction effects. |
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