NUMERICAL-SOLUTION OF THE HIGH-FREQUENCY ASYMPTOTIC-EXPANSION FOR THESCALAR WAVE-EQUATION

Authors
FATEMI E ENGQUIST B OSHER S
Citation
E. Fatemi et al., NUMERICAL-SOLUTION OF THE HIGH-FREQUENCY ASYMPTOTIC-EXPANSION FOR THESCALAR WAVE-EQUATION, Journal of computational physics, 120(1), 1995, pp. 145-155
Citations number
17
Categorie Soggetti
Mathematical Method, Physical Science","Computer Science Interdisciplinary Applications","Physycs, Mathematical
Journal title
Journal of computational physics → ACNP
ISSN journal
00219991
Volume
120
Issue
1
Year of publication
1995
Pages
145 - 155
Database
ISI
SICI code
0021-9991(1995)120:1<145:NOTHAF>2.0.ZU;2-8
Abstract
New numerical methods are derived for calculation of high frequency as ymptotic expansion of the scalar wave equation. The nonlinear partial differential equations defining the terms in the expansion are approxi mated directly rather than via ray tracing, High resolution numerical algorithms are used to handle discontinuities and new devices are intr oduced to represent the multivalued character of the solution. (C) 199 5 Academic Press, Inc.