✦ LIBER ✦

Thermoacoustic oscillation in channels of the pressurized He II

✍ Scribed by H Kobayashi; Y Suganuma; H Yoshida; Y Matsubara; A Tominaga

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 152 KB
Volume: 42
Category: Article
ISSN: 0011-2275
DOI: 10.1016/s0011-2275(02)00047-4

No coin nor oath required. For personal study only.

✦ Synopsis

In channels filled with the pressurized He II at 1 atm, a continuous thermoacoustic oscillation with a clear sound is triggered above the critical power-input q k of the phase transition under some conditions. A temperature distribution along the channel length is entirely maintained as long as the thermoacoustic oscillation lasts, i.e. the heat q k is kept transporting in the vortex state without drying the heater surface.

The characteristic frequency of the thermoacoustic oscillation depends both on the channel length and weakly on the bath temperature, reflecting the property of the 1st sound.

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