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题名: Discontinuity Evolution and Sonic Propagation for Superfluidity Hydrodynamics with Small Superfluid Entropy
作者: Zhang Sun(张笋)1, 2, 3; Dong Yi-Qiao4
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2014-11-01
卷号: 62, 期号:5, 页码:729-736
关键词: fourth sound ; sixth sound ; shock wave ; discontinuity ; growth equation
学科分类: 天文和天体物理
文章类型: Article
英文摘要: In this paper, we have studied discontinuity evolution and sonic propagation for the two-fluid model with small superfluid entropy in the framework of hydrodynamics. General features of the transverse mode and the longitudinal mode are provided. The fourth sound and the sixth sound are identified as the propagation of discontinuity, in agreement with earlier theoretical studies. Moreover, the growth equation is obtained to describe the decay and growth of the discontinuity propagating along its normal trajectory. The solution is in an integral form and various cases are discussed. Important discriminations between the case of fourth sound and that of sixth sound are also presented, which may be meaningful for future's experiments to identify the sixth sound and the small superfluid entropy.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: LIQUID-HELIUM-II ; 2ND-SOUND SHOCK-WAVES ; WEAK DISCONTINUITIES ; 4TH SOUND ; HE-II ; ANISOTROPIC PROPAGATION ; RADIATING GASES ; IDEAL GASES ; THERMODYNAMICS ; GROWTH
收录类别: SCI
语种: 英语
WOS记录号: WOS:000347465000017
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11563
Appears in Collections:南极天文中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
3.PMO NJU, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210008, Jiangsu, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China

Recommended Citation:
Zhang Sun; Dong Yi-Qiao.Discontinuity Evolution and Sonic Propagation for Superfluidity Hydrodynamics with Small Superfluid Entropy,COMMUNICATIONS IN THEORETICAL PHYSICS,2014,62(5):729-736
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文件名: 201402010Discontinuity Evolution and Sonic Propagation for Superfluidity Hydrodynamics with Small Superfluid Entropy.pdf
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