期刊文献+

A MIXED FINITE ELEMENT APPROXIMATIONFOR COMPRESSIBLE FLOW OF CONTAMINATION FROM NUCLEAR WASTE IN POROUS MEDIA

A MIXED FINITE ELEMENT APPROXIMATION FOR COMPRESSIBLE FLOW OF CONTAMINATION FROM NUCLEAR WASTE IN POROUS MEDIA
全文增补中
导出
摘要 A compressible nuclear waste disposal contamination in porous media. is modeled by a coupled system of partial differential equations. The approximation of this system using a finite element method for the brine, radionuclides, and heat combined with a mixed finite element method for the pressure and velocity are analyzed. Optimal order error estimates in H-1 and L-2 are derived. This paper improves upon previously derived estimates in two aspects. Firstly, the error analysis is given with no restriction on the diffusion tensors. That is, it has included the effects of molecular diffusion and dispersion. Secondly, the 'complete compressibility' case is considered. A compressible nuclear waste disposal contamination in porous media. is modeled by a coupled system of partial differential equations. The approximation of this system using a finite element method for the brine, radionuclides, and heat combined with a mixed finite element method for the pressure and velocity are analyzed. Optimal order error estimates in H-1 and L-2 are derived. This paper improves upon previously derived estimates in two aspects. Firstly, the error analysis is given with no restriction on the diffusion tensors. That is, it has included the effects of molecular diffusion and dispersion. Secondly, the 'complete compressibility' case is considered.
作者 周所向 李潜
出处 《Acta Mathematica Scientia》 SCIE CSCD 1998年第2期146-157,共12页 数学物理学报(B辑英文版)
关键词 mixed finite element COMPRESSIBLE nuclear waste mixed finite element compressible nuclear waste
  • 相关文献

参考文献12

  • 1Franco Brezzi,Jim Douglas,Ricardo Durán,Michel Fortin.Mixed finite elements for second order elliptic problems in three variables[J]. Numerische Mathematik . 1987 (2)
  • 2Franco Brezzi,Jim Douglas,L. D. Marini.Two families of mixed finite elements for second order elliptic problems[J]. Numerische Mathematik . 1985 (2)
  • 3J. C. Nedelec.Mixed finite elements in ?3[J]. Numerische Mathematik . 1980 (3)
  • 4Wheeler M F.A Priori L2 erroe estimates for Galerkin approximations to parabolic partial differential equations.SLAM J. Numer. Anal . 1973
  • 5Brezzi F.On the existence, uniqueness and approximation of saddle point problems arising from Lagragian multipliers.RAIRO, Anal. Numer . 1974
  • 6Duran R G.On the approximation of mixcible displacement in porous media by a method of characteristics combined with a mixed method. SIAM Journal on Numerical Analysis . 1988
  • 7Raviart P A,Thomas J M.A mixed finte element method for second order elliptic problems, in Mathematical Aspects of the Finite Element Method. Lecture Notes in Mathematics .
  • 8Chou S H,Li Q.Mixed fintie element methods for compressible miscible displacement in porous media. Mathematics of Computation . 1991
  • 9Ewing R E,Yuan Y,Li G.Time stepping along characteristics for a mixed finite element approximation for compressible flow of contaimination from nuclear waste in porous media. SIAM Journal on Numerical Analysis . 1989
  • 10Douglas Jr J,Roberts J E.Numerical methods for a model for compressible miscible displacement in porous media. Mathematics of Computation . 1983

共引文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部