Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (5): 50602-050602.doi: 10.11889/j.0253-3219.2018.hjs.41.050602

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles     Next Articles

Flow-induced vibration analysis of heat transfer tube based on two-way fluid-structure interaction

MIAO Hongkang1,2, CHEN Yushuang1, LYU Liushuai1,2, WANG Xiao1, XU Guangdi3, WANG Naxiu1   

  1. 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
  • Received:2017-12-07 Revised:2018-01-22 Online:2018-05-10 Published:2018-05-08
  • Supported by:
    Supported by Strategic Priority Research Program of Chinese Academy of Sciences (No.XDA0201002), National Natural Science Foundation of China (No.91326201)

Abstract: [Background] The molten-salt-air heat exchanger is an important part of thorium molten salt reactor (TMSR) integrated simulation platform based on strategic priority research program of Chinese Academy of Sciences, and the flow-induced vibration problem of heat transfer tube in this heat exchanger is critical. Furthermore, the analysis of fluid-structure interaction is currently few and unreliable. [Purpose] This study aims at the flow-induced vibration response characteristics of U-type heat pipe in shell and tube heat exchangers. [Methods] Numerical simulation was operated based on two-way fluid-structure interaction, and the calculated results are compared with experimental data to judge the feasibility of this method. [Results and Conclusion] The relationship between acceleration values are consistent, the error between experimental data and calculated results is in the range of about -12% to 15%, shows that flow-induced vibration analysis of single-tube based on two-way fluid-structure interaction method is feasible. Numerical simulation has also indicated that in the initial period of 0.06 s air flow and displacement of heat transfer tube tend to be stable, the U-type tube has periodic variation characteristics of expand-rebound. Finally, the reciprocating motion of tube tends to be a shape of number "8".

Key words: Shell-and-tube heat exchanger, U-type tube, Flow-induced vibration, Two-way fluid-structure interaction

CLC Number: 

  • TL334