Title
A singularly perturbed convection-diffusion problem with a moving pulse.
Abstract
A singularly perturbed parabolic equation of convectiondiffusion type is examined. Initially the solution approximates a concentrated source. This causes an interior layer to form within the domain for all future times. Using a suitable transformation, a layer adapted mesh is constructed to track the movement of the centre of the interior layer. A parameter-uniform numerical method is then defined, by combining the backward Euler method and a simple upwinded finite difference operator with this layer-adapted mesh. Numerical results are presented to illustrate the theoretical error bounds established.
Year
DOI
Venue
2017
10.1016/j.cam.2017.03.003
J. Computational Applied Mathematics
Keywords
Field
DocType
65L11,65L12
Mathematical optimization,Finite difference,Mathematical analysis,Pulse (signal processing),Singular perturbation,Operator (computer programming),Numerical analysis,Backward Euler method,Mathematics,Parabola
Journal
Volume
Issue
ISSN
321
C
0377-0427
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
J. L. Gracia113918.36
Eugene O'Riordan212019.17