基于精细化建模的换热管涡激振动数值研究  

A numerical study of vortex-induced vibration of heat exchanger tubebased on refined modeling

作　　者：孙军帅 李旭鹏 孙汝雷 温济铭 李小畅[3] 田瑞峰[1] SUN Junshuai;LI Xupeng;SUN Rulei;WEN Jiming;LI Xiaochang;TIAN Ruifeng(College of Nuclear Science and Technology,Harbin Engineering University,Harbin 150001,China;Marine Design and Research Institute of China,Shanghai 200011,China;College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学核科学与技术学院,黑龙江哈尔滨150001 [2]中国船舶及海洋工程设计研究院,上海200011 [3]哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2023年第12期2119-2127,共9页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(U22B2093).

摘　　要：为了研究换热管的涡激振动行为,本文基于大涡模拟方法建立了精细化流场计算模型。采用HHT-α方法求解结构动力学方程,结合局部动网格变形技术,得到了换热管涡激振动流固耦合计算模型。以雷诺数为3900的固定圆柱绕流算例和Jauvtis&Williamson的经典涡激振动实验分别对流场计算模型和结构场计算模型进行了验证分析,并研究了不同约化流速下换热管的振动响应、运动轨迹、尾迹模式等。结果表明:建立的涡激振动计算模型可以准确地预测单根换热管的涡激振动行为。本文研究对建立换热管管束结构的流致振动计算模型具有借鉴意义。To study the vortex-induced vibration behavior of a single heat exchange tube,we established a refined flow field calculation model based on a large eddy simulation.The structural dynamics equations using the HTT-αmethod.In combination with the local dynamic mesh deformation technology,the fluid-structure interaction calcula-tion model of the vortex-induced vibration of the heat exchange tube was obtained.To analyze and study the vibra-tion response,motion trajectory,and wake mode of the heat exchange tube at different reduced flow velocities,the flow field calculation and the structural field calculation models were fully verified using the flow around a fixed cyl-inder with a Reynolds number of 3900 and Jauvtis&Williamson′s classical vortex-induced vibration experiment.The results show that the vortex-induced vibration calculation model accurately predicts the vortex-induced vibration behavior of a single heat exchange tube.This research provides an important reference for establishing a flow-in-duced vibration calculation model of the tube bundle structure.

关 键 词：精细化建模 大涡模拟 圆柱绕流 局部动网格变形技术 流固耦合 流致振动 超级上端分支 锁频 

分 类 号：TL353.1[核科学技术—核技术及应用]