The modeling and validation of the flow and heat transfer models of pulsating flow in channels in rolling motion |
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| Affiliation: | 1. Research School of Reactor, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Islamic Republic of Iran;2. Research School of Radiation Applications, Nuclear Science and Technology Research Institute, P.O. Box 11365-3486, Tehran, Islamic Republic of Iran;3. Department of Energy Engineering and Physics, Amirkabir University of Technology (Tehran Polytechnic), 424 Hafez Avenue, P.O. Box 15875-4413, Tehran, Islamic Republic of Iran;1. Department of Nuclear Engineering, University of Isfahan, Hezarjarib Avenue, P.O. Box 81746-73441, Isfahan, Iran;2. Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;1. Department of Biochemistry, Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University School of Basic Medical Sciences, Wuhan, China;2. Nursing and Medical School of Technology, Jianghan University, Wuhan, China;3. Department of Biochemistry, Gannan Medical University, Ganzhou, China;4. Medical School, Jianghan University, Wuhan, China |
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| Abstract: | The flow and heat transfer models of laminar flow and turbulent flow in rolling motion are established theoretically and modified with CFD results and experimental data. The correlations of frictional resistance coefficient and Nusselt number in pipes in rolling motion are obtained. The effect of rolling motion on the flow and heat transfer is mainly affected by the Reynolds number, angular acceleration and channel diameter. As the channel diameter is small, the effect of rolling motion on the flow and heat transfer is weak. The modified correlations of frictional resistance coefficient and Nusselt number in rolling motion could predict the flow and heat transfer in pipes in rolling motion correctly. The average discrepancy between theoretical correlations and experimental data is about 15%. |
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