The Asymptotic Finite Element method for improvement of standard finite element solutions of perturbation equations by the addition of asymptotic corrections to the right hand side terms is presented. It is applied here to 1-D and 2-D diffusion-convection equations and to non-linear similarity equat
Constrained finite elements for singular boundary value problems
β Scribed by G Ogen; B Schiff
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 811 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0021-9991
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π SIMILAR VOLUMES
An adaptive finite element-boundary element algorithm is proposed to compute an approximate solution of a given boundary value problem. The convergence in H 1 (O) is controlled by a boundary element based a-posteriori error estimator from which an adaptive refinement strategy is derived. Correspondi
we study two point boundary value problems for second-order differential equations that have no solution if a boundary condtion is imposed at z = 0, but that do have a solution of boundary layer type if the boundary condition is given at z = e, for small, positive values of s. The study is motivated