STATISTICS OF VELOCITY DIFFERENCE VS STATISTICS OF DISSIPATION IN ISOTROPIC TURBULENCE

被引:12
作者
HOSOKAWA, I [1 ]
YAMAMOTO, K [1 ]
机构
[1] NATL AEROSP LAB, CHOFU, TOKYO 182, JAPAN
关键词
D O I
10.1143/JPSJ.60.1852
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
From the data of a 3D numerically simulated isotropic turbulence, it is found that the statistics of longitudinal velocity difference in distancer r is different from that of the velocity scale derived from dissipation averaged over a domain of scale r, and then intermittency exponents can hardly be related with exponents of structure functions. The probability distributions in both statistics are comparatively studied from the viewpoint of scale-similarity and modelling to involve multifractality.
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页码:1852 / 1855
页数:4
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