The modeling and validation of the flow and heat transfer models of pulsating flow in channels in rolling motion

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• 作者：B.H. Yan ; ^{binghuoy@163.com}
• 关键词：Theoretical models ; Validation ; Pulsating flow ; Rolling motion
• 刊名：Progress in Nuclear Energy
• 出版年：2012
• 期刊代码：42_01491970
• 类别：pw
• 出版时间：July, 2012
• 卷：58
• 期：Complete
• 页码：64-75
• 文件大小：1814 K

摘要

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%.