On the universal form of energy spectra in fully developed turbulence
作者:
Zhen‐Su She,
Eric Jackson,
期刊:
Physics of Fluids A
(AIP Available online 1993)
卷期:
Volume 5,
issue 7
页码: 1526-1528
ISSN:0899-8213
年代: 1993
DOI:10.1063/1.858591
出版商: AIP
数据来源: AIP
摘要:
Several experimentally measured energy spectra of fully developed incompressible turbulent flows with Taylor microscale Reynolds numbers ranging from 130–13 000 have been reexamined. It is shown that all spectra collapse to a universal curve after a simple rescaling of space and time. This rescaling does not involve any multifractal‐type transformation, and the rescaled wave numbers scatter around the Kolmogorov dissipation wave numbers derived from experimentally measured quantities. An empirical formula for the resulting universal form is proposed, indicating a nontrivial form of the energy spectrum near the viscous dissipation cutoff.
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