The fast nearfield method applied to axisymmetric radiators

Authors

  • James F. Kelly Dept. of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, United States
  • Xiaozheng Zeng Dept. of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, United States
  • Robert J. McGough Dept. of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, United States

Keywords:

Acoustic waves, Acoustics, Error analysis, Pressure effects, Rayleigh scattering, Velocity measurement, Apodized pressure field, Axisymmetric radiators, Fast nearfield method (FNM), Rayleigh-Sommerfield integral

Abstract

A fast nearfield method (FNM) was developed for pistons that have a spatially uniform velocity. This fast nearfield method was implemented and compared with the standard Rayleigh integral approach. The Rayleigh-Sommerfield integral representing the apodized pressure field was also evaluated using the point source method. It was found that speedup on the order of 4 is achieved at 10 and 1% peak errors.

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Published

2005-09-01

How to Cite

1.
Kelly JF, Zeng X, McGough RJ. The fast nearfield method applied to axisymmetric radiators. Canadian Acoustics [Internet]. 2005 Sep. 1 [cited 2022 Oct. 3];33(3):102-3. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1765

Issue

Section

Proceedings of the Acoustics Week in Canada