Flow analysis by coupling dominant fracture and network fracture systems and its application

Hongtao Wang, Yongfeng Nie, Yusong Li

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Dealing with the analysis of three dimensional fluid flow in a fractured anisotropic rock mass, an effective and practical simulation method is provided for the calculation of ground water flow in the rock mass where hydropower project is constructed. Fractures in a rock mass can be divided into dominant fracture system and network fracture system. A distinct medium method is applied to describe flow in the dominant fracture system while a continuum method is applied to describe flow in the network fracture system. The two systems are coupled together by hydraulic head and flux to constitute a coupled model. A method for the calculation of equivalent porous permeability is presented by using the fracture geometry data in a network fracture system. The results show that the coupled approach can effectively reflect the special effects of dominant fractures in terms of permeability and the properties of rock matrixes in terms of water storage.

Original languageEnglish (US)
Pages (from-to)23-26, 31
JournalQinghua Daxue Xuebao/Journal of Tsinghua University
Volume38
Issue number12
StatePublished - 1998

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Science Applications
  • Applied Mathematics

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