1887

Abstract

We present an optimized compact finite-difference scheme that has a fourth-order of accuracy but with higher resolving power over a larger range of wavenumbers compared to other traditional finite-difference schemes. In order to realize that, we borrow ideas from Lele’s compact scheme (Lele, 1992) and Tam’s DRP schemes (Tam and Webb, 1993). I.e., we design an optimized finite-difference scheme that uses short stencils but with an optimized coefficient. This way it may help us take advantage of the computer caches without losing higher resolving power. A detailed Fourier analysis on the proposed scheme has been analyzed. A migration impulse response has been tested using our optimized compact finite-difference scheme.

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/content/papers/10.3997/2214-4609.20147707
2008-06-09
2020-10-21
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20147707
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