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Velocity of acoustical waves in liquid-filled capillary tubes at loiv temperatures

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In order to measure the velocity of sound in liquefied gases, contained in capillary tubes at low temperatures, the influence of the wall vibrations and the Kirchhoff-Helmholtz corrections on the velocity of sound in liquid oxygen and nitrogen have been studied.

Firstly the velocity of sound in several liquid filled tubes, with a relative large inner diameter and varying wall thickness, was measured and these experimental results compared with the free space velocity.

The velocity of sound was then measured in liquid filled tubes having a large wall thickness, but varying now the inner diameter of the tubes. After correction of these results for the wall vibrations, we obtained for the velocity of sound, as a function of the diameter of the capillary tube, a curve which agrees reasonably with the theoretical curve calculated from the Kirchhoff-Helmholtz formulae.
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Document Type: Research Article

Publication date: January 1, 1962

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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