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RIEMANN INVARIANTS AND THE PROPAGATION OF NONLINEAR WAVES IN SUPERFLUID HELIUM.

[In Russian. / En russe.]

Author(s) : NEMIROVSKIJ S. K.

Type of article: Article

Summary

AN EQUATION SET IN TERMS OF RIEMANN INVARIANTS IS OBTAINED WHICH DESCRIBES THE PROPAGATION OF INTENSE SOUND WAVES IN SUPERFLUID HELIUM. IT IS FOUND ON THE BASIS OF A QUALITATIVE INVESTIGATION OF THE EQUATIONS THAT AN INTENSE ENTROPY PULSE DECAYS INTO A < FORERUNNER > (PRESSURE WAVE MOVING WITH THE VELOCITY OF FIRST SOUND) AND A < MIXTURE > OF ENTROPY AND DENSITY PERTURBATIONS MOVING WITH THE VELOCITY OF SECOND SOUND.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1984-1752
  • Languages: Russian
  • Source: Z. eksp. teor. Fiz. - vol. 86 - n. 6
  • Publication date: 1984
  • Document available for consultation in the library of the IIR headquarters only.

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