Phase velocity of a pressure wave on the axis of an acoustic field of a circular ring in an acoustic baffle

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Authors

  • Roman WYRZYKOWSKI Institute of Physics, Higher Pedagogical School in Rzeszów, Poland

Abstract

This paper is concerned with the so-called local velocity of a harmonic pressure wave of a. circular ring vibrating with a constant velocity amplitude. The ring is placed in an infinite rigid acoustic baffle. The local propagation velocity was calculated on the axis conducted from the center of the ring perpendicularily to its surface. The propagation velocity changes from infinity for z = 0 (singular point) to a constant value, c_0, for e equal to about 10 times the external radius of the ring.

References

[1] I. MALECKI, Theory of waves and acoustic systems (in Polish), IPPT PAN, Warszawa 1964.

[2] E. SKUDRZYK, The Foundations of Acoustics, Springer Verlag, Wien-New York 1971.

[3] H. STENZEL, O. BROSZE, Leitfaden sur Berechnung von Schallvorgangen, Springer Verlag, Berlin, Meidelburg 1958.

[4] R. WYRZYROWSKI, Linear theory of the acoustic field of gas media (in Polish). RTPN, WSP, Rzeszów 1972.

[6] R. WYRZYROWSKI, unpublished.