Accession Number:

AD0808753

Title:

A NOTE ON CONVERGENT ZONES

Descriptive Note:

Technical rept.,

Corporate Author:

SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)

Personal Author(s):

Report Date:

1962-02-02

Pagination or Media Count:

16.0

Abstract:

An exact solution for ray paths near a sound channel with parabolic velocity profile is given for rays crossing the sound channel axis at small angles. The convergent zone for such rays for a source on axis is compared with the numerically computed results of M. A. Pederson, J. Acoust. Soc. Am., 33, 465, 1961. Two simple straight line velocity gradient approximations are compared with the parabolic case for the purpose of observing their accuracy. Both cases show surprisingly good agreement over a range of choices for the gradients. Author

Subject Categories:

  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE