Skip Navigation

The Quarterly Journal of Mechanics and Applied Mathematics 2001 54(4):613-630; doi:10.1093/qjmam/54.4.613
© 2001 by Oxford University Press
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (2)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Davis, A. M. J.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Point-Source Excitation of the Density Contrast Wedge: Perturbation for Nearly Equal Sound Speeds

A. M. J. Davis1

( 1 Mathematics Department, University of Alabama, Tuscaloosa, Alabama 35487-0350, USA )

The extension of the Biot–Tolstoy exact time-domain solution to the density contrast wedge is used to develop an iterative procedure that facilitates construction of the first-order perturbation of the exterior field with respect to distinct wave speed for a point source, which is either smoothly switched on and off within a finite time or is oscillatory for all time. In both cases, this perturbation field is symmetric with respect to the source and field points and appears as an integral over the wedge involving the isovelocity solution for the interior region. The ‘geometrical acoustics’ components are simplified for ‘rational’ wedge angles in the switch-on/off case and estimated in the far field in the oscillatory case to be generated by a ray passing through the wedge, possibly with internal reflection.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.