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Small-scale turbulent fluctuations beyond Taylor's frozen-flow hypothesis
He XZ; He GW(何国威); Tong PG
Source PublicationPhysical Review E
2010
Volume81Issue:6Pages:65303
ISSN1539-3755
AbstractThe space-time cross-correlation function C-T(r, tau) of local temperature fluctuations in turbulent Rayleigh-Benard convection is obtained from simultaneous two-point time series measurements. The obtained C-T(r, tau) is found to have the scaling form C-T(r(E), 0) with r(E)=[(r-U tau)(2)+ V-2 tau(2)](1/2), where U and V are two characteristic velocities associated with the mean and rms velocities of the flow. The experiment verifies the theory and demonstrates its applications to a class of turbulent flows in which the requirement of Taylor's frozen flow hypothesis is not met.
DOI10.1103/PhysRevE.81.065303
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Indexed BySCI
Language英语
WOS IDWOS:000279271700001
WOS KeywordRAYLEIGH-BENARD CONVECTION ; SPECTRUM
WOS Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas ; Physics, Mathematical
Funding OrganizationHong Kong RGC [HKUST-603208] ; China NSFC [10732090]
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/43493
Collection非线性力学国家重点实验室
Corresponding AuthorTong PG
Recommended Citation
GB/T 7714
He XZ,He GW,Tong PG. Small-scale turbulent fluctuations beyond Taylor's frozen-flow hypothesis[J]. Physical Review E,2010,81(6):65303.
APA He XZ,何国威,&Tong PG.(2010).Small-scale turbulent fluctuations beyond Taylor's frozen-flow hypothesis.Physical Review E,81(6),65303.
MLA He XZ,et al."Small-scale turbulent fluctuations beyond Taylor's frozen-flow hypothesis".Physical Review E 81.6(2010):65303.
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