Materials Science and Engineering Laboratory Materials Reliability Division National Institute of Standards and Technology Materials Reliability Division

Workshop on Computational Tools for Modeling Acoustic Propagation in Real-World Materials
(CTAP 2004)

August 9th and 10th, 2004

TECHNICAL PROGRAM
The workshop is designed to bring together scientists, engineers, and mathematicians who are interested in the development of computational tools for modeling acoustic propagation. This includes propagation in materials that are of interest to the diverse branches of acoustics, including geophysics, SONAR, medical ultrasound, and nondestructive evaluation.

Featured Speakers (Full Speaker List Below):
David H. Marlin (U.S. Army Research Laboratory)
Guy V. Norton (U.S. Naval Research Laboratory)
Matthew R. Rielly (Philips Medical Systems)
Thomas L. Szabo (Boston University)


Workshop Format:

  • Invited review talks
  • Limited number of contributed papers
  • Discussion period following each talk
  • Breakout sessions to focus on specific aspects of physical models and computational mathematics of acoustic propagation
  • Session to establish a working group and prioritize important computational needs

Workshop Issues and Topics:

  • Physical and mathematical aspects of acoustic propagation
    • Time-causal wave equation
    • Kramers-Krönig dispersion relations
    • Linear and nonlinear propagation

  • Computational mathematical techniques
    • Finite-difference time-domain methods
    • Causal boundary conditions
    • Efficient convolution techniques

  • High performance computing methods
    • Parallel computation
    • Single and distributed memory models
    • Message Passing Interface

Address any questions to Kendall Waters (Workshop Chairman) by telephone at (303) 497-4587 or by email. Check back for a more detailed agenda.


SPEAKER LIST
Presenting Author: David H. Marlin (Invited)
Affiliation: U.S. Army Research Laboratory
Title: Finite-Difference Time-Domain Acoustic Propagation in a Complex Outdoor Environment
Presenting Author: Guy V. Norton (Invited)
Affiliation: U.S. Naval Research Laboratory
Title: A review of modeling acoustic propagation and scattering within an aggregate of bubbles including both attenuation and dispersion effects directly in the time domain
Presenting Author: Matthew R. Rielly (Invited)
Affiliation: Philips Medical Systems
Title: The challenges associated with using a numerical model to simulate nonlinear acoustic fields from ultrasonic diagnostic imaging systems
Presenting Author: Thomas L. Szabo (Invited)
Affiliation: Boston University, Department of Aerospace & Mechanical Engineering
Title: The development of the time causal theory
Presenting Author: Dave Aldridge
Co-Author(s): Neill P. Symons
Affiliation: Sandia National Laboratory, Geophysical Technology Department
Title: Finite-integro-difference algorithm for 3D anacoustic wave propagation
Presenting Author: Colm M. Flannery
Co-Author(s): Donna C. Hurley
Affiliation: National Institute of Standards and Technology, Materials Reliability Division
Title: Analysis of laser-ultrasonic dispersive SAW waveforms for thin-film inspection
Presenting Author: Joel Mobley
Affiliation: U.S. Army Research Laboratory, Atmospheric Effects Branch
Title: Causal prediction of dispersion and attenuation in resonant and power-law systems with finite-bandwidth Kramers-Kronig relations
Presenting Author: Osama M. Mukdadi
Co-Author(s): Robin Shandas
Affiliation: The Children’s Hospital in Denver, Colorado, Department of Pediatric Cardiology
Title: Use of a composite non-linear model including microbubbles and tissue to examine harmonic effects for ultrasonic propagation and backscatter in complex tissues
Presenting Author: Paul Reynolds
Co-Author(s): Roland Krause, Laura Carcione, John Mould, David Vaughan
Affiliation: Weidlinger Associates Inc.
Title: Pseudospectral Techniques for Large Scale Biomedical Ultrasound Problems
Presenting Author: Paul Reynolds
Co-Author(s): Roland Krause, Laura Carcione, John Mould, David Vaughan
Affiliation: Weidlinger Associates Inc.
Title: Explicit Time Domain Modelling Techniques for Efficient Analysis of Piezoelectric Ultrasonic Transducers
Presenting Author: Kirk D. Wallace
Affiliation: Washington University in Saint Louis, Department of Physics
Title: Nonlinear Propagation of Finite Amplitude Waves with Kramers-Krönig Predicted Dispersion in Media Characterized by Frequency Power-Law Dependent Attenuation
Presenting Author: Kendall R. Waters
Affiliation: National Institute of Standards and Technology, Materials Reliability Division
Title: The relationship between the Kramers-Krönig dispersion relations and the time-causal relations
Presenting Author: Margaret Wismer
Affiliation: Bucknell University, Department of Electrical Engineering
Title: Numerical modeling of broadband acoustic pulses through media with power law attenuation