Numerical Simulation of Circumferential Non-Uniform Heat Transfer of Single-Phase Flow in Helical Pipes

被引：0
作者：
Wang R. [1 ]
Xiao Y. [1 ]
Gu H. [1 ]
Ye Y. [1 ]
机构：
[1] School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2020年 / 54卷 / 07期
关键词：
Centrifugal force; Circumferential non-uniform heat transfer; Computational fluid dynamics; Helical pipe; Single-phase heat transfer;
D O I：
10.16183/j.cnki.jsjtu.2019.077
中图分类号：
学科分类号：
摘要：
In this paper, the Reynolds stress model is used to simulate the circumferential non-uniform heat transfer of single-phase flow in a helical pipe. The calculation is verified based on the comparison with the experimental data. It is found that the ratio of gravity acceleration to centrifugal force acceleration (φ) affects the circumferential heat transfer distribution of helical pipes. The reason for this is that the changes ofφ lead to the changes of the direction of resultant force of gravity and centrifugal force. It is concluded that the main factor affecting the circumferential heat transfer distribution isφ. Besides, the changing rules and the effects of geometry parameters of helical pipes, such as the ratio of gravity acceleration to centrifugal force acceleration, pitch circle diameter, pipe hydraulic diameter, and spirally ascend angle, on the circumferential heat transfer distribution are discussed. © 2020, Shanghai Jiao Tong University Press. All right reserved.
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页码：688 / 696
页数：8
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