Effect of a fluid wedge on the wave propagation along a fluid-solid interface: A modeling approach

C. M. Dao, S. Das, S. Banerjee, Tribikram Kundu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Interaction between a bounded ultrasonic beam and a liquid wedge over a solid half-space is studied. A semi-analytical technique called Distributed Point Source Method (DPSM) is adopted for modeling the ultrasonic field in a wedge shaped fluid structure on a solid half space. This study is important for analyzing the ultrasonic waves used for the nondestructive inspections of partially immersed structures and for studying the effect of underwater ultrasonic or acoustic wave experiments on marine lives near the shore. The problem geometry considers a bounded acoustic beam striking a fluid-solid interface between a fluid wedge and a solid half-space. Solution of this problem is beyond the scope of the currently available analytical methods when the beam is bounded. However, it is important to model the bounded beams because in all underwater communications and inspections bounded beams are used. Currently only numerical method [Boundary Element Method (BEM) or Finite Element Method (FEM)] based packages (e.g. PZFlex) are in principle capable of modeling ultrasonic fields in such structures. However, these packages are not very accurate and are very CPU intensive for high frequency ultrasonic problems. At high frequencies FEM and BEM based packages require huge amount of computation memory and time for their executions that DPSM technique can avoid. Effect of the angle variation between the fluid-solid interface and the fluid wedge on the wave propagation characteristics is studied.

Original languageEnglish (US)
Title of host publicationStructural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007
PublisherDEStech Publications
Pages919-926
Number of pages8
Volume1
ISBN (Print)9781932078718
StatePublished - 2007
Event6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007 - Stanford, United States
Duration: Sep 11 2007Sep 13 2007

Other

Other6th International Workshop on Structural Health Monitoring: Quantification, Validation, and Implementation, IWSHM 2007
CountryUnited States
CityStanford
Period9/11/079/13/07

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Information Management

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  • Cite this

    Dao, C. M., Das, S., Banerjee, S., & Kundu, T. (2007). Effect of a fluid wedge on the wave propagation along a fluid-solid interface: A modeling approach. In Structural Health Monitoring 2007: Quantification, Validation, and Implementation - Proceedings of the 6th International Workshop on Structural Health Monitoring, IWSHM 2007 (Vol. 1, pp. 919-926). DEStech Publications.