Vortex diffusion in superfluid turbulence: hysteresis and decay

IF 0.6 Q3 MULTIDISCIPLINARY SCIENCES

Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali Pub Date : 2019-05-20 DOI:10.1478/AAPP.97S1A17

M. Mongiovì, L. Saluto, D. Jou

引用次数: 0

Abstract

In this paper we consider the effects of vortex diffusion in two paradigmatic inhomogeneous physical situations; radial heat flow between two concentric cylinders, and vortex decay in a finite cylindrical container. Diffusion effects may strongly modify the expected results for the vortex length density L as a function of the heat flux q , leading also to dynamical unexpected features, relating L to time in decay, or to hysteresis behaviour of L for increasing/decreasing heat flux.

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超流体湍流中的涡流扩散：滞后和衰减

在本文中，我们考虑了涡旋扩散在两种典型的非均匀物理情况下的影响；两个同心圆柱体之间的径向热流以及有限圆柱形容器中的涡流衰减。扩散效应可能会强烈地改变作为热通量q函数的涡流长度密度L的预期结果，也会导致动态的意外特征，将L与衰变时间相关，或与L的滞后行为相关，以增加/减少热通量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Atti Accademia Peloritana dei Pericolanti-Classe di Scienze Fisiche Matematiche e Naturali MULTIDISCIPLINARY SCIENCES-

CiteScore

3.80

自引率

0.00%

发文量

审稿时长

31 weeks

期刊介绍： This journal is of a multi- and inter-disciplinary nature and covers a broad range of fields including mathematics, computer science, physics, chemistry, biology, earth sciences, and their intersection. History of science is also included within the topics addressed by the journal. The transactions of the Pelorian Academy started out as periodic news sheets containing the notes presented by the members of the Divisions into which the Academy has been and still is organized, according to subject areas. The publication of these notes for the Division (“Classe”) of Mathematical, Physical and Natural Sciences is the responsibility of the Editorial Committee, which is composed of the Director of the division with the role of Chairman, the Vice-Director, the Secretary and two or more other members. Besides original research articles, the journal also accepts texts from conferences and invited talks held in the Academy. These contributions are published in a different section of the journal. In addition to the regular issues, single monographic supplements are occasionally published which assemble reports and communications presented at congresses, symposia, seminars, study meetings and other scientific events organized by the Academy or under its patronage. Since 2004 these transactions have been published online in the form of an open access electronic journal.