Fractional step runge–kutta methods for the resolution of two dimensional time dependent coefficient convection–diffusion problems
- Bujanda, B. 2
- Jorge, J.C. 1
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1
Universidad Pública de Navarra
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2
Universidad de La Rioja
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ISSN: 0302-9743
Année de publication: 2001
Volumen: 1988
Pages: 133-143
Type: Article
beta Ver similares en nube de resultadosD'autres publications dans: Lecture Notes in Computer Science
Résumé
In this paper we obtain a unconditional convergence result for discretization methods of type Fractional Steps Runge-Kutta, which are highly efficient in the numerical resolution of parabolic problems whose coefficients depend on time. These methods combined with standard spatial discretizations will provide totally discrete algorithms with low computational cost and high order of accuracy in time. We will show the efficiency of such methods, in combination with upwind difference schemes on special meshes, to integrate numerically singularly perturbed evolutionary convection–diffusion problems. © Springer-Verlag Berlin Heidelberg 2001.