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The Chebyshev spectral viscosity method for the time dependent Eikonal equation

✍ Scribed by Mehdi Dehghan; Rezvan Salehi

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
587 KB
Volume
52
Category
Article
ISSN
0895-7177

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✦ Synopsis

A wide range of applications requires an accurate solution of a particular Hamilton-Jacobi (H-J) equation known as the Eikonal equation. In this paper, we employ the Chebyshev pseudospectral viscosity method to solve this equation. This method essentially consists of adding a spectral viscosity to the equation for high wave numbers of the numerical solution. This spectral viscosity, which is sufficiently small to retain the formal spectral accuracy is large enough to stabilize the numerical scheme. Here the method is described in detail and the numerical results for several examples are provided which reveals the efficiency of the proposed method.

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