A Numerical Simulation of Multiphase Flow in a Discrete Fracture Network

이산 균열망에서 다상 흐름에 대한 수치모의

  • 정우창 (한국수자원공사, 수자원연구원, 수자원시스템연구소) ;
  • 황만하 (한국수자원공사, 수자원연구원, 수자원시스템연구소) ;
  • 고익환 (한국수자원공사, 수자원연구원, 수자원시스템연구소) ;
  • 송재우 (홍익대학교 건설 도시공학부 토목공학과)
  • Published : 2005.05.01

Abstract

The numerical simulation of a two-phase flow In a discrete fracture network model is presented in this paper, The purpose of this work is to consider density-driven flows induced by the density difference between hot autochthonous heavy brines and injected cold water. Mechanical consequences of high pressure waves on the fracture permeability and heat exchanges between fluids and rock matrix are neglected in this study. The finite volume method is employed to discretize spatially and the system is solved by using an IMPES(Implicit Pressure-Explicit Saturation) scheme. In order to solve the strong non-linearity of the system, the Newton-Raphson algorithm is used. The well-known Buckeley-Leverett problem is adapted to validate results calculated from the model and a relatively good agreement is obtained.