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A Simple Computational Tool for Studying Acoustic Waves in Nonlinear Medium

[+] Author Affiliations
Nirmal J. Nair

University of Illinois Urbana-Champaign, Urbana, IL

Utsav Shah

Airbus, Karnataka, India

Paper No. DETC2017-67892, pp. V006T10A046; 6 pages
  • ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Cleveland, Ohio, USA, August 6–9, 2017
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5820-2
  • Copyright © 2017 by ASME


The behaviour of acoustic waves in nonlinear medium is well established in literature. But there is a need of a simple computational tool through which practical problems pertaining to nonlinear acoustics can be treated with minimum effort and expense. Additionally, visualization of nonlinear acoustic waves can be useful towards the applications of acoustic diodes and ultrasonic waves. To address this issue, we have developed a numerical scheme which effectively captures the self-distortion mechanism of acoustic wave in nonlinear medium and the consequential generation of higher harmonics. Additionally, the effects of increasing non-linearity constant of the medium and amplitude of sound waves on distortion of the waveform is studied.

Copyright © 2017 by ASME
Topics: Acoustics , Waves



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