SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (3): 698-711.DOI: 10.1016/j.cjche.2019.08.008

• Fluid Dynamics and Transport Phenomena • Previous Articles     Next Articles

Prediction of curved oil-water interface in horizontal pipes using modified model with dynamic contact angle

Hongxin Zhang, Lusheng Zhai, Ruoyu Liu, Cong Yan, Ningde Jin   

  1. School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
  • Received:2018-11-10 Revised:2019-07-23 Online:2020-06-11 Published:2020-03-28
  • Contact: Lusheng Zhai
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 41974139, 41504104, 11572220, 51527805) and Natural Science Foundation of Tianjin, China (19JCYBJC18400).

Prediction of curved oil-water interface in horizontal pipes using modified model with dynamic contact angle

Hongxin Zhang, Lusheng Zhai, Ruoyu Liu, Cong Yan, Ningde Jin   

  1. School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
  • 通讯作者: Lusheng Zhai
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Grant Nos. 41974139, 41504104, 11572220, 51527805) and Natural Science Foundation of Tianjin, China (19JCYBJC18400).

Abstract: In this study, interface shapes of horizontal oil-water two-phase flow are predicted by using Young-Laplace equation model and minimum energy model. Meanwhile, the interface shapes of horizontal oil-water twophase flow in a 20 mm inner diameter pipe are measured by a novel conductance parallel-wire array probe (CPAP). It is found that, for flow conditions with low water holdup, there is a large deviation between the model-predicted interface shape and the experimentally measured one. Since the variation of pipe wetting characteristics in the process of fluid flow can lead to the changes of the contact angle between the fluid and the pipe wall, the models mentioned above are modified by considering dynamic contact angle. The results indicate that the interface shapes predicted by the modified models present a good consistence with the ones measured by CPAP.

Key words: Oil-water two-phase flow, Curved interface, Conductance parallel-wire array probes, Dynamic contact angle

摘要: In this study, interface shapes of horizontal oil-water two-phase flow are predicted by using Young-Laplace equation model and minimum energy model. Meanwhile, the interface shapes of horizontal oil-water twophase flow in a 20 mm inner diameter pipe are measured by a novel conductance parallel-wire array probe (CPAP). It is found that, for flow conditions with low water holdup, there is a large deviation between the model-predicted interface shape and the experimentally measured one. Since the variation of pipe wetting characteristics in the process of fluid flow can lead to the changes of the contact angle between the fluid and the pipe wall, the models mentioned above are modified by considering dynamic contact angle. The results indicate that the interface shapes predicted by the modified models present a good consistence with the ones measured by CPAP.

关键词: Oil-water two-phase flow, Curved interface, Conductance parallel-wire array probes, Dynamic contact angle