Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4630426 | Applied Mathematics and Computation | 2011 | 10 Pages |
Abstract
A rational differential quadrature method in irregular domains (RDQMID) is investigated to deal with a kind of singularly perturbed problems with boundary layers. Through a transformation, the boundary layer, which may be not straight, is transformed into a segment of a line parallel to one of the Cartesian axes. The rational differential quadrature method (RDQM) is applied to discretize the governing equation. Finally, a direct expansion method of the boundary conditions (DEMBC) is raised to deal with the boundary conditions. Numerical experiments show that RDQMID is of high accuracy, efficiency and easy to programme.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Liangliang Du, Xionghua Wu,