Influence of the flow direction on the vibration and heat transfer characteristics of an elastic tube bundle
JI Jiadong1,2, CHEN Weiqiang1, DENG Xu1, ZHOU Rong1， DENG Ruyi1， LU Yu1
1. School of Mechanical Engineering, Anhui University of Science & Technology, Huainan 232001，China；
2. Anhui Key Laboratory of Mine Intelligent Equipment and Technology, Anhui University of Science & Technology, Huainan 232001，China
Abstract：For studying the vibration and heat transfer characteristics of a new planar elastic tube bundle (NPETB) induced by the shell-side fluid of different directions, three groups of shell-side fluid domains with different flow directions were set up. The vibration and heat transfer characteristics of the NPETB impacted by the shell-side fluid were analyzed. The effect of tube bundle installation angle on the average surface heat transfer coefficient of the NPETB was studied. The results indicate that when the shell side fluid impacts the NPETB from the front, the vibration mode of the NPETB is out-plane vibration in the low flow rate range and in-plane vibration in the high flow rate range. The vibration mode of the NPETB is out-plane vibration when the shell side fluid impacts the NPETB from the side. In the low flow rate range, there is little difference in vibration intensity of fluid impacting the NPETB from different directions. In the high flow rate range, the vibration intensity of the NPETB is large and the vibration is violent. The heat transfer performance is the best when the shell side fluid impacts the NPETB from the front. In the range of calculation parameters in this paper, the maximum amplitude of the NPETBs in heat exchanger appears when the installation angle is 0º or 10º, and the maximum average heat transfer coefficient appears when the installation angle is -10º.
Key words: fluid-structure coupling; vibration response; heat transfer performance; planar elastic tube bundle; heat exchanger
季家东1,2，陈卫强1，邓旭1，周蓉1，邓如意1，卢钰1. 来流方向对弹性管束振动及传热特性的影响[J]. 振动与冲击, 2022, 41(18): 252-257.
JI Jiadong1,2, CHEN Weiqiang1, DENG Xu1, ZHOU Rong1， DENG Ruyi1， LU Yu1. Influence of the flow direction on the vibration and heat transfer characteristics of an elastic tube bundle. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(18): 252-257.
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