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Numerical Investigation on Dynamic Response Characteristics of Fluid-Structure Interaction of Gas-Liquid Two-Phase Flow in Horizontal Pipe


Fluid-structure interaction (FSI) of gas-liquid two-phase flow in the horizontal pipe is investigated numerically in the present study. The volume of fluid model and standard k-ε turbulence model are integrated to simulate the typical gas-liquid two-phase flow patterns. First, validation of the numerical model is conducted and the typical flow patterns are consistent with the Baker chart. Then, the FSI framework is established to investigate the dynamic responses of the interaction between the horizontal pipe and gas-liquid two-phase flow. The results show that the dynamic response under stratified flow condition is relatively flat and the maximum pipe deformation and equivalent stress are 1.8 mm and 7.5 MPa respectively. Meanwhile, the dynamic responses induced by slug flow, wave flow and annular flow show obvious periodic fluctuations. Furthermore, the dynamic response characteristics under slug flow condition are maximum; the maximum pipe deformation and equivalent stress can reach 4 mm and 17.5 MPa, respectively. The principal direction of total deformation is different under various flow patterns. Therefore, the periodic equivalent stress will form the cyclic impact on the pipe wall and affect the fatigue life of the horizontal pipe. The present study may serve as a reference for FSI simulation under gas-liquid two-phase transport conditions.

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the National Natural Science Foundation of China (No. 51779143), the Oceanic Interdisciplinary Program of Shanghai Jiao Tong University (No. SL2020ZD101), and the Cultivation of Scientific Research Ability of Young Talents of Shanghai Jiao Tong University (No. 19X100040072)

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Correspondence to Yanping He.

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Wang, Z., He, Y., Li, M. et al. Numerical Investigation on Dynamic Response Characteristics of Fluid-Structure Interaction of Gas-Liquid Two-Phase Flow in Horizontal Pipe. J. Shanghai Jiaotong Univ. (Sci.) (2022).

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Key words

  • gas-liquid two-phase flow
  • volume of fluid model
  • fluid-structure interaction (FSI)
  • dynamic response characteristics

CLC number

  • O 359

Document code

  • A