SWS Academic Research eLibraryEarth & Planetary Sciences

Scholarly record

ACOUSTIC WAVE PROPAGATION IN STROGLY HETEROGENEOUS MEDIA: A LATTICE BOLTZMANN APPROACH

S. A. Abolghasemifar, M. S. Monfared, H. Aghajani

First published: 2009DOI pendingView metrics

Abstract

Here we show how a lattice Boltzmann based approach accurately model acoustic wave propagation in strongly heterogeneous media. Rather than solving a partial-differential wave equation in a continuous medium, the lattice-Boltzmann based method directly simulates the physical processes of wave propagation: transportation, reflection and transmission. It can accurately handle sharp interfaces at any locations along lattice links, and total reflections from free surfaces or empty bubbles. I used empty and nonempty bubbles as heterogeneity in finely layered media and solved the equation of the wave in these heterogeneous media. The results not only coincide with the reality but also take less time than finite difference method and were more accurate.

Publication details

Title
ACOUSTIC WAVE PROPAGATION IN STROGLY HETEROGENEOUS MEDIA: A LATTICE BOLTZMANN APPROACH
Authors
S. A. Abolghasemifar, M. S. Monfared, H. Aghajani
Proceedings
9th International Multidisciplinary Scientific GeoConference SGEM2009
Publisher
SGEM Scientific GeoConference
Year
2009
Pages
643-648
SWS Citekey
Abolghasemifar2009294
ISSN
1314-2704
ISBN
954-91818-1-2
Language
en
Publication type
Conference Paper
Keywords
Acoustic wave propagationLattice-Boltzmann modelingheterogeneous media
References6

  1. Chen, S., Doolen, G.D., Lattice Boltzmann

  2. Mech, 30, 329-364,

  3. Crampin, S., Evidence for aligned cracks i

  4. Huang, L., Mora, P., The phononic lattic wave in heterogeneous media, Geophysics Jour

  5. Hudson, J.A., Wave speeds and attenuatio cracks, Geophysics Journal R. Astron. Soc., 64 mann method for fluid flows, Annu. Rev. Fluid acks in the earth’s crust, First breaks, 3, 12-15, lattice solid by interpolation for modeling P s Journal

  6. International, 119, 766-778, 1994a. uation of elastic waves in material containing c., 64, 133-150,

View or Download full articleAccess options
Full paper accessChoose SWS login, librarian support, or instant article download.

SWS access login

Login as SWS Scientific Committee

Authors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.

For librarian assistance: [email protected]

Purchase Instant Access

48-hour online accessComing soon
Online-only accessComing soon
Download the full article in PDF formatEUR 35
  • Article can be downloaded after successful payment.
  • Article may be used according to SWS library access terms.
  • Article cannot be redistributed.
Get full paper

Back to publication list