Acta mathematica scientia,Series A ›› 2012, Vol. 32 ›› Issue (2): 271-289.

• Articles • Previous Articles     Next Articles

The Upwind Finite Difference Method for Three-dimensional Moving Boundary Value Problem

 YUAN Yi-Rang1, LI Chang-Feng2   

  1. 1.Institute of Mathematics, Shandong University, Jinan 250100;
    2.School of Economics, Shandong University, Jinan |250100
  • Received:2010-10-08 Revised:2011-08-06 Online:2012-04-25 Published:2012-04-25
  • Supported by:

    国家重点基础研究专项经费项目(G19990328)、国家攻关项目(20050200069)、国家自然科学基金(10771124, 10372052, 11101244)、
    国家教育部博士点基金(20030422047)、山东省自然科学基金(ZR2009AQ012)和山东大学自主创新基金(2010TS031)资助

Abstract:

The research of the three-dimensional compressible miscible (oil and water)  displacement problem with moving boundary values is of great value to the history of  oil-gas transport and accumulation in basin evolution, as well as to the rational evaluation in prospecting and exploiting oil-gas resources. The mathematical model can be described as a coupled system of nonlinear partial differential equations with moving boundary values. For a generic case of three-dimensional bounded region, the authors  put forward a kind of upwind finite difference schemes and make use the calculus of variations, the change of variables and the theory of a priori estimates and techniques. Optimal order estimates in l2  norm are derived for the errors in approximate solutions. The research is important both theoretically and practically for model analysis in the field, model numerical method and software development. Thus, the well-known problem is solved.

Key words: Compressible displacement, Three-dimensional moving boundary, Upwind finite difference fractional steps, l2error estimate, Actual application

CLC Number: 

  • 65M06
Trendmd