Visible cavitation has been obtained readily in liquid helium using a barium titanate cylinder resonant at about 46 kc/sec. The nature of the cavitation changes in various temperature régimes, and these changes are reflected by changes in the threshold, as measured by the driving voltage of the transducer. Below about 2.13°K, the threshold for visible cavitation is an order of magnitude higher than the threshold for noise; but between 2.13°K and the λ point the visibility threshold drops and becomes comparable to the noise threshold. Static pressure has a much greater effect on the visibility threshold than on the noise threshold. The results are discussed and the conclusion is reached that the information obtained is more pertinent to the dynamics of the cavities than their nucleation.
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March 1966
March 01 1966
Visible Cavitation in Liquid Helium
R. D. Finch;
R. D. Finch
Physics Department, University of California, Los Angeles, California
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Taylor G. J. Wang
Taylor G. J. Wang
Physics Department, University of California, Los Angeles, California
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J. Acoust. Soc. Am. 39, 511–514 (1966)
Article history
Received:
November 08 1965
Citation
R. D. Finch, Taylor G. J. Wang; Visible Cavitation in Liquid Helium. J. Acoust. Soc. Am. 1 March 1966; 39 (3): 511–514. https://doi.org/10.1121/1.1909920
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