Preprint 1998-005

High-Resolution Finite Volume Methods for Acoustics in a Rapidly-Varying Heterogeneous Medium

Abstract: Behavior of acoustic waves in a rapidly-varying heterogeneous medium may be investigated analytically via various homogenization theories. Alternatively, one can solve the heterogeneous equations directly with a numerical method. Although a numerical solution can be difficult with standard methods, we have found the equations can be solved directly using the high-resolution multi-dimensional finite volume methods of CLAWPACK, which are based on solving "Riemann Problems".

Paper:

Available as PostScript (1.5 Mbytes) or gzipped PostScript (232 Kbytes; uncompress using gunzip).

Title:

High-resolution finite volume methods for acoustics in a rapidly-varying heterogeneous medium

Author(s):

Tiernan Fogarty, <rucksack@amath.washington.edu>

Randall J. LeVeque, <rjl@amath.washington.edu>

Publishing information:

To appear in Proc. 4'th Intl. Conf. on Wave Propagation, Golden, Colorado, June 1--5, 1998.

Comments:

Submitted by:

<rjl@amath.washington.edu> January 26 1998.