Acta mathematica scientia,Series A ›› 1999, Vol. 19 ›› Issue (2): 196-205.

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The alternating birection schemes and numerical analysis for three dimensional transport accumulation (oil and water)

  

  1. (Institute of Mathematics, Shandong University, Jinan 250100)

  • Online:1999-05-01 Published:1999-05-01

Abstract:

The software for oilgas transport and accumulation is to describe the history of oilgas transport accumulation in basin evolution. It is of great value in rational evaluation of prospecting and defines oil deposit location. The mathematical model can be described as a coupled system of nonlinear partial differential equations with initialboundary value problems. This thesis, from actual conditions such as the effects of gravitation, buoyancy, capillary pressure and the three-dimensional characteristic of largescale scienceengineering computation, puts forward a kind of characteristic finite element alternatingdirection schemes, this is, by dividing it into three continuous one-dimensional problems. By making use tensor product algorithmnegative norm estimate and theory of prior estimates. Optimal order estimates in L2 norm are derived for the error in approximate solutions.

Key words: Threedimensional, Transportaccumulation, Mixedfiniteelements, Characteristicfiniteelements, Alternatingdirection, OptimalorderestimatesinL2

CLC Number: 

  • 65M
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