中国物理B ›› 2012, Vol. 21 ›› Issue (8): 84701-084701.doi: 10.1088/1674-1056/21/8/084701

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

The study of a two-phase wedge-sliding model on the ingredients drift of stable mixed fluid and its computing method

韩志宏, 刘佐民   

  1. Tribological Institute, Wuhan University of Technology, Wuhan 430070, China
  • 收稿日期:2011-08-10 修回日期:2011-10-13 出版日期:2012-07-01 发布日期:2012-07-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51075311).

The study of a two-phase wedge-sliding model on the ingredients drift of stable mixed fluid and its computing method

Han Zhi-Hong (韩志宏), Liu Zuo-Min (刘佐民 )   

  1. Tribological Institute, Wuhan University of Technology, Wuhan 430070, China
  • Received:2011-08-10 Revised:2011-10-13 Online:2012-07-01 Published:2012-07-01
  • Contact: Han Zhi-Hong E-mail:handled@sina.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51075311).

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摘要： A two-phase wedge-sliding model is developed based on the micro-cellular structure and minimum entropy theory of stable system, and it is used to describe the ingredient distribution of mixed fluid in non-uniform stress field and to analyse its phase drift phenomenon. In the model, the drift-inhibition angle and the expansion-inhibition angle are also deduced and used as evaluating indexes to describe the drifting trend of different ingredients among the mixed fluids. For solving above two indexes of the model, a new calculation method is developed and used to compute the phase distributions of multiphase fluid at peak stress and gradient area stress respectively. As an example, the flow process of grease in a pipe is analysed by simulation method and used to verify the validity of the model.

关键词: mixed fluid, ingredient drift, wedge-sliding model, computing method

Abstract: A two-phase wedge-sliding model is developed based on the micro-cellular structure and minimum entropy theory of stable system, and it is used to describe the ingredient distribution of mixed fluid in non-uniform stress field and to analyse its phase drift phenomenon. In the model, the drift-inhibition angle and the expansion-inhibition angle are also deduced and used as evaluating indexes to describe the drifting trend of different ingredients among the mixed fluids. For solving above two indexes of the model, a new calculation method is developed and used to compute the phase distributions of multiphase fluid at peak stress and gradient area stress respectively. As an example, the flow process of grease in a pipe is analysed by simulation method and used to verify the validity of the model.

Key words: mixed fluid, ingredient drift, wedge-sliding model, computing method

中图分类号:  (Flow instabilities)

  • 47.20.-k
47.61.Jd (Multiphase flows) 64.75.Cd (Phase equilibria of fluid mixtures, including gases, hydrates, etc.) 83.60.Wc (Flow instabilities)