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Int. J. Numer. Anal. Mod., 2 (2005), pp. 179-196. |
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A priori and A posteriori error estimates for Boussinesq equations Karam Allali 1 1 Département de Mathématiques, Faculté des Sciences et Techniques, Université HassanII, B.P. 146, Mohammedia, MoroccoReceived by the editors April 12, 2004 and, in revised form, July 7, 2004 Abstract This paper deals with an incompressible viscous flow problem, where the Navier-Stokes equations are coupled with a nonlinear heat equation. Existence and uniqueness results are established. Next, a finite element approximation of the problem is presented and analyzed. Error estimates are obtained and a posteriori error estimate is given. AMS subject classifications: 65N30 Key words: Boussinesq equations; a posteriori error estimates; finite element methods Email: allali@uh2m.ac.ma |