There are two basic ยฎlm boiling modes: noisy ยฎlm boiling and silent ยฎlm boiling, and also a transition boiling in He II. Pressure oscillations during boiling show that there are sharp dierences among them. Chaotic analysis method is introduced into the analysis of ยฎlm boiling. Fast Fourier Transform
Ultrasonic study of thin superfluid helium flims
โ Scribed by J.D.N. Cheeke; P. Morisseau; M. Poirier
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 285 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0375-9601
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A modified two-fluid model is adopted to study flow and heat transfer of superfluid helium in a microchannel with a diameter as small as that of a superleak in a fountain effect pump. Variable properties of superfluid helium and energy dissipations due to the two-fluid mutual friction and the fricti