Numerical analysis on interactions between fluid flow and structure deformation in plate-fin heat exchanger by Galerkin method

  • Jing-cheng Liu
  • Xiu-ting Wei
  • Zhi-yong Zhou
  • Zhen-wen Wei


The fluid-structure interaction performance of plate-fin heat exchanger (PFHE) with serrated fins in large scale air-separation equipment was investigated in this paper. The stress and deformation of fins were analyzed, besides, the interaction equations were deduced by Galerkin method. The governing equations of fluid flow and heat transfer in PFHE were deduced by finite volume method (FVM). The distribution of strain and stress were calculated in large scale air separation equipment and the coupling situation of serrated fins under laminar situation was analyzed. The results indicated that the interactions between fins and fluid flow in the exchanger have significant impacts on heat transfer enhancement, meanwhile, the strain and stress of fins includes dynamic pressure of the sealing head and flow impact with the increase of flow velocity. The impacts are especially significant at the conjunction of two fins because of the non-alignment fins. It can be concluded that the soldering process and channel width led to structure deformation of fins in the exchanger, and degraded heat transfer efficiency.



This paper is supported by the National Natural Science Foundation of China (No. 51705297) and Natural Science Foundation of Shandong Province, China (Grant No. ZR2016EEP09). Besides, we would also like to show our appreciation to Mr. WEI Zhenwen, the chairman of Doright Corporation, for his kindly help during the leading flow and enhanced heat transfer experiment period.

Compliance with ethical standards

Conflict of interest

The authors have no financial or other relationship that might be perceived as leading to a conflict of interest that could affect authors’ objectivity. Besides, this manuscript has not been published elsewhere and it has not been submitted simultaneously for published elsewhere.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Jing-cheng Liu
    • 1
  • Xiu-ting Wei
    • 1
  • Zhi-yong Zhou
    • 2
  • Zhen-wen Wei
    • 1
    • 3
  1. 1.Shandong Provincial Key Laboratory of Precision Manufacturing and Non-traditional MachiningShandong University of TechnologyZiboChina
  2. 2.Hangyang Co., Ltd.Designing InstituteHangzhouPeople’s Republic of China
  3. 3.Doright Energy Saving Equipment Co., Ltd.QingdaoPeople’s Republic of China

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