Dynamics of quantum vortices in superfluid '4He

• Autorzy: Lipniacki T.
• Języki publikacji: EN

Abstrakty

EN

The dissipative motion of quatized vortex line, after reconnection, is studied within the localized induction approximation. The numerical symulations of vortex line evolution help to determine the rate of the line-length changes. In the absence of counterflow, the vortex line shortens after each reconnection and line-length reduction is calculated as a function of friction parametr alpha and reconnection angle phi. The obtained results sugest that the decay of quantized vortex tangle is due to line-length reduction which occurs after each reconnection of vortex lines. In the presence of the counterflow, however, the reconnection may initiate a generation of a cascade of vortex loops. These loops blow up, so the totallength of vortices grows up and the quantum turbulece can be generated.

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 1998
• Tom: Vol. 50, nr 3
• Strony: 467--482
• Opis fizyczny: Bibliogr. 6 poz.,Rys., wykr.,

Twórcy

autor

Lipniacki T.

• Polish Academy of Sciences, Institute of Fundamental Technological Research