Propagation velocity of a vibration velocity wave, i.e. acoustic velocity wave

Downloads

Authors

  • Roman WYRZYKOWSKI Institute of Physics, Pedagogic High School in Rzeszów, Poland

Abstract

In this paper the author proves that the propagation velocity of an acoustic velocity wave in the near field differs from the velocity of a pressure wave, while both differ from c_0 in d'Alambert's equation. The velocity of an acoustic velocity wave was calculated for a point source, for a cylindrical source of zero order and for a circular piston and ring in a baffle.

References

[1] M. ABRAMOWITZ, I. A. STEGUN, Handbook of mathematical functions, Dover Publications, New York 1963.

[2] F. JANKE, F. EMDE, F. LOACH, Tafeln horerer funktionen, B. 6. Teubner velagagesellschaft, Stuttgard 1960.

[3] M. KWIEK, Laboratory acoustics, PWN, Poznań-Warszawa 1968 (in Polish).

[4] I. MALECKI, Theory, of acoustic waves and systems, IFTR PAS, Warszawa 1964 (in Polish).