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Discontinuity Evolution and Sonic Propagation for Superfluidity Hydrodynamics with Small Superfluid Entropy
Zhang Sun1,2,3; Dong Yi-Qiao4
2014-11-01
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
Volume62Issue:5Pages:729-736
AbstractIn 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.
KeywordFourth Sound Sixth Sound Shock Wave Discontinuity Growth Equation
Subject Area天文和天体物理
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordLIQUID-HELIUM-II ; 2ND-SOUND SHOCK-WAVES ; WEAK DISCONTINUITIES ; 4TH SOUND ; HE-II ; ANISOTROPIC PROPAGATION ; RADIATING GASES ; IDEAL GASES ; THERMODYNAMICS ; GROWTH
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000347465000017
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/11563
Collection南极天文中心
Affiliation1.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
GB/T 7714
Zhang Sun,Dong Yi-Qiao. Discontinuity Evolution and Sonic Propagation for Superfluidity Hydrodynamics with Small Superfluid Entropy[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2014,62(5):729-736.
APA Zhang Sun,&Dong Yi-Qiao.(2014).Discontinuity Evolution and Sonic Propagation for Superfluidity Hydrodynamics with Small Superfluid Entropy.COMMUNICATIONS IN THEORETICAL PHYSICS,62(5),729-736.
MLA Zhang Sun,et al."Discontinuity Evolution and Sonic Propagation for Superfluidity Hydrodynamics with Small Superfluid Entropy".COMMUNICATIONS IN THEORETICAL PHYSICS 62.5(2014):729-736.
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