空间锥螺旋管束流体诱导振动换热器及性能分析

闫柯 1; 葛梦然 2; 高军 2; 葛培琪 1

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空间锥螺旋管束流体诱导振动换热器及性能分析

更新时间：2025-07-09

- 空间锥螺旋管束流体诱导振动换热器及性能分析
- Performance of Flow-Induced Vibration Heat Exchanger with Conical Spiral Tube Bundle
- 西安交通大学学报 2011年45卷第11期页码：22-26
- 作者机构：
  
  山东大学高效洁净机械制造教育部重点实验室,济南,250061
- 作者简介：
- 基金信息：
  
  : 2011-03-14. 作者简介: 闫柯(1984-),男,博士生;葛培琪(联系人),男,教授,博士生导师. 基金项目: 国家重点基础研究发展计划资助项目(2007CB206900);山东大学自主创新基金资助项目(31360070613218)
- DOI：
  中图分类号： TB53
- 网络首发：2011-11-10，
  
  纸质出版：2011
- 稿件说明：
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闫柯 1, 葛梦然 2, 高军 2, 等. 空间锥螺旋管束流体诱导振动换热器及性能分析[J]. 西安交通大学学报, 2011,45(11):22-26.

Performance of Flow-Induced Vibration Heat Exchanger with Conical Spiral Tube Bundle[J]. 2011, 45(11): 22-26.
闫柯 1, 葛梦然 2, 高军 2, 等. 空间锥螺旋管束流体诱导振动换热器及性能分析[J]. 西安交通大学学报, 2011,45(11):22-26. DOI：

Performance of Flow-Induced Vibration Heat Exchanger with Conical Spiral Tube Bundle[J]. 2011, 45(11): 22-26. DOI：

摘要

基于动态子结构理论、利用固定界面模态坐标变换及超单元技术

分析了空间锥螺旋管束的振动特性和脉动元件诱发管束振动的频率条件

计算了0.1 m/s壳程流速、横向脉动流激励条件下空间螺旋管束的振动特性

研究了空间锥螺旋管束管内二次流及其换热特性.结果表明:单排空间锥螺旋管束的振动分为横向和纵向振动

以纵向振动为主; 在横向脉动流激励作用下

管束的振动与其横向固有振型近似

空间锥螺旋管束的低阶模态频率较低

易于诱发振动; 管内截面二次流分为4个涡区

强烈的管内二次流致使管束换热性能提高

空间锥螺旋管束单位面积的换热量是传统平面管束的1.4倍以上.

Abstract

From the dynamic substructure theory

the vibration of conical spiral tube bundle and the frequency condition of the pulsation element were analyzed using the component mode synthesis method and the super element method. The vibration characteristics of conical spiral tube bundle driven by the transverse pulsation were calculated at a shellside flow rate of 0.1 m/s. The secondary fluid flow inside the tube and its heat transfer were numerically investigated. The results show that the vibration of the single row spiral tube can be divided into transverse vibration and axial vibration

and the latter is dominant. The vibration of conical spiral tube bundle is easy to be induced due to its small low-order mode frequency. Under the condition of pulsating flow

the tube bundle vibration is similar to its transverse vibration mode. The contours of the fluid flow inside the tube indicate that the secondary fluid flow is complicated. There are four independent parts of the secondary flow in each cross section and the flow directions are different from each other. The heat flux of the conical spiral tube bundle is 1.4 times that of the conventional planar elastic tube bundles.

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references

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