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Jpn. J. Appl. Phys. 26 (1987) Supplement 26-3-1 pp. 97-98  |Previous Article| |Next Article|  |Table of Contents|
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Proc. 18th Int. Conf. Low Temperature Physics, Kyoto, 1987

Stability of Rotating Couette Flow of Superfluid 4He: Analysis Based on Bekarevich-Khalatnikov's Hydrodynamics

Shohei Kashiwamura, Kazumasa Miyake, Kazuo Yamada and Jun Yamauchi1

Department of Physics, College of General Education, Nagoya University, Chikusa-ku, Nagoya 464, Japan
1Department of Physics, College of General Education, Nagoya University, Kawaijuku, Chikusa-ku, Nagoya 464, Japan

Stability of the rotating Couette flow in HeII is investigated on the basis of Bekarevich-Khalatnikov's hydrodynamics which includes both the effects of mutual friction (B and B') and of the vortex tension. It is shown that the stability sustained by the mutual friction B is easily decreased when the temperature is decreased through the lambda point say by 0.4K, while the vortex tension increases the stability sustained by the mutual friction B. These results suggest that the boundary friction on the vortex motion as well as the eddy viscosity due to the vortex motion are crucial to account for the stability which has been observed by Wolf et al.

URL: http://jjap.jsap.jp/link?JJAPS/26S3/97/


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