Vinen’s Latest Thoughts on the “Bump” Puzzle in Decaying He II Counterflow Turbulence

Vinen’s Latest Thoughts on the “Bump” Puzzle in Decaying He II Counterflow Turbulence
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维宁对衰变 He II 逆流湍流中“碰撞”难题的最新思考

DOI:
10.1007/s10909-023-02961-7
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发表时间:
2023
影响因子:
2
通讯作者:
Kanai, Toshiaki
Kanai, Toshiaki
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Guo, Wei;Kanai, Toshiaki

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威廉·F. Vinen(也被称为Joe Vinen)在超流氦-4中的热逆流湍流在很大程度上开创了量子湍流的研究。尽管对这一主题进行了数十年的研究,但仍有一些悬而未决的问题有待解决。一个这样的问题与逆流湍流衰减过程中涡线密度L(t)的异常增加有关,这通常被称为L(t)曲线上的“凸起”。2016年,Vinen和同事开发了一个理论模型来解释这种令人困惑的现象(JETP Letters,103,648-652(2016))。然而,他意识到,在过去几年中,他的生活,这一理论必须至少是不够的。为了纪念乔,本文讨论了他关于逆流湍流及其衰减的最新思想。我们还简要概述了我们最近的实验和数值计算工作对这个主题。
The pioneering work of William F. Vinen (also known as Joe Vinen) on thermal counterflow turbulence in superfluid helium-4 largely inaugurated the research on quantum turbulence. Despite decades of research on this topic, there are still open questions remaining to be solved. One such question is related to the anomalous increase in the vortex-line densityL(t) during the decay of counterflow turbulence, which is often termed as the “bump” on theL(t) curve. In 2016, Vinen and colleagues developed a theoretical model to explain this puzzling phenomenon (JETP Letters,103, 648-652 (2016)). However, he realized in the last a few years of his life that this theory must be at least inadequate. In remembrance of Joe, we discuss in this paper his latest thoughts on counterflow turbulence and its decay. We also briefly outline our recent experimental and numerical work on this topic.
He II 中衰减逆流湍流的去极化。
DOI: --
发表时间: 2006
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
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