A level set based Eulerian method for paraxial multivalued traveltimes
نویسندگان
چکیده
منابع مشابه
A level set based Eulerian method for paraxial multivalued traveltimes
We apply the level-set methodology to compute multivalued solutions of the paraxial eikonal equation in both isotropic and anisotropic metrics. This paraxial equation is obtained from 2D stationary eikonal equations by using one of the spatial directions as the artificial evolution direction. The advection velocity field used to move level sets is obtained by the method of characteristics; ther...
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The geometric optics approximation to high frequency anisotropic wave propagation reduces the anisotropic wave equation to a static Hamilton–Jacobi equation. This equation is known as the anisotropic eikonal equation and has three different coupled wave modes as solutions. We introduce here a level set-based Eulerian approach that captures all three of these wave propagations. In particular, ou...
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2004
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2003.12.017