Numerical solution of boundary value problems for the eikonal equation in an anisotropic medium
Journal of Computational and Applied Mathematics(2018)
摘要
A Dirichlet problem is considered for the eikonal equation in an anisotropic medium. The nonlinear boundary value problem (BVP) formulated in the present work is the limit of the diffusion-reaction problem with a reaction parameter tending to infinity. To solve numerically the singularly perturbed diffusion-reaction problem, monotone approximations are employed. Numerical examples are presented for a two-dimensional BVP for the eikonal equation in an anisotropic medium. The standard piecewise-linear finite-element approximation in space is used in computations.
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关键词
Eikonal equation,Finite-element method,Diffusion-reaction equation,Singularly perturbed BVP,Monotone approximation
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