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Higher order kinetic theory of excitations in He II and spontaneous instability in a counter current

✍ Scribed by S.E Goodman; P.G Saffman

Publisher: Elsevier Science
Year: 1970
Tongue: English
Weight: 892 KB
Volume: 59
Category: Article
ISSN: 0003-4916
DOI: 10.1016/0003-4916(70)90391-x

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✦ Synopsis

The kinetic theory of excitations in flowing liquid He II is developed to a higher order than that carried out previously in order to demonstrate the existence of nonequilibrium terms of a new nature in the hydrodynamic equations. It is shown that these terms can lead to spontaneous destabilization in counter currents when the relative velocity of the normal and super fluids exceeds a critical value depending on temperature. The critical velocities are estimated to range from 14 to 20 m/set, but tend to zero as T-t T,.

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Higher order kinetic theory of excitatio

Higher order kinetic theory of excitations in He II and spontaneous instability in a counter current: S. E. Goodman and P. G. Saffman. Department of Applied Mathematics, Firestone Lab., Cal. Inst. of Tech., Pasadena, Cal.

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