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

doi:10.1088/1674-1056/21/8/084701

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.

Keywords: mixed fluid ingredient drift wedge-sliding model computing method

Received: 10 August 2011
Revised: 13 October 2011
Accepted manuscript online:

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

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 51075311).

Corresponding Authors: Han Zhi-Hong
E-mail: handled@sina.cn

Cite this article:

Han Zhi-Hong (韩志宏), Liu Zuo-Min (刘佐民 ) The study of a two-phase wedge-sliding model on the ingredients drift of stable mixed fluid and its computing method 2012 Chin. Phys. B 21 084701

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

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