The time dependences of the main properties of the vortex loops just after reconnection in superfluid helium

被引：1
|
作者：
Andryushchenko, V. A. [1 ]
Kondaurova, L. P. [1 ]
机构：
[1] RAS, Siberian Branch, Kutateladze Inst Thermophys, 1 Ac Lavrentieva Ave, Novosibirsk 630090, Russia
来源：
XXXV SIBERIAN THERMOPHYSICAL SEMINAR, 2019 | 2019年 / 1382卷
基金：
俄罗斯基础研究基金会;
关键词：
HE-4;
D O I：
10.1088/1742-6596/1382/1/012001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
We investigate a single vortex reconnection event in superfluid helium at zero temperature, when mutual friction is absent, and at 1.9 K temperature, when mutual friction essentially changes the evolution of lines. The vortex filament method with full Biot-Savart equation is used for numerical investigation of the time dependences of the main properties of the vortex loops just after reconnection. In this paper, we present the obtained dependencies of the average curvature of the loop, Lamb momentum, angular momentum, and energy from time. The effect of mutual friction force and initial conditions on these properties is studied.
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页数：6
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