Measurements and analysis of farfield scattering from a prolate spheroid

A. Bayliss, L. Maestrello

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The farfield acoustic scattering by a prolate spheroid with axial point sources near the tip of the body was measured. Data were taken for ka between 10 and 160, where a is the semimajor axis of the spheroid. Comparisons were made with numerical results obtained by an integral equation based on the simple-source method, with appropriate coordinate stretching introduced to permit high-frequency solutions with a minimal number of grid points. Theory and experiment agree within experimental error except for the highest frequencies in the shadow region, where very rapid changes in pressure make precise measurements difficult. The results show that for frequencies of aeroacoustic interest, the scattered field is very large and cannot be ignored.

Original languageEnglish (US)
Pages (from-to)896-900
Number of pages5
Journaljournal of the Acoustical Society of America
Volume64
Issue number3
DOIs
StatePublished - Sep 1978

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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