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U.S. Department of Energy
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Large-scale computing in reservoir simulation

Journal Article · · Int. J. Supercomput. Appl.; (United States)
Operator-splitting techniques are applied to the nonlinear coupled systems of partial differential equations used to model multiphase or multicomponent flows in porous media. Convection is treated by time-stepping along the characteristics of the associated pure convection problem, and diffusion is modeled via Petrov-Galerkin finite element techniques. Accurate approximations of the fluid velocities needed in the modified method of characteristic time-stepping are obtained by mixed finite element methods. Substructuring techniques are used to develop self-adaptive local grid-refinement enhancements to the operator-splitting methods described above. Aspects of large-scale computation will be emphasized.
Research Organization:
Univ. of Wyoming, Laramie, WY (US)
OSTI ID:
6274375
Journal Information:
Int. J. Supercomput. Appl.; (United States), Journal Name: Int. J. Supercomput. Appl.; (United States) Vol. 2:4; ISSN IJSAE
Country of Publication:
United States
Language:
English