Intermittency in channel-flow turbulence

被引:0
|
作者
Toschi, F [1 ]
Amati, G [1 ]
Piva, R [1 ]
Succi, S [1 ]
Benzi, R [1 ]
机构
[1] Univ Pisa, I-56126 Pisa, Italy
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work we present a study of intermittency in a channel, i.e. in a non-homogeneous, non-isotropic flow. Scaling exponents of longitudinal streamwise structure functions, zeta(p), are used as quantitative indicators of intermittency. We find that, near the core of the channel, the value of zeta(p) are consistent with homogeneous/isotropic values. Near the boundaries intermittency is much higher approaching passive scalar values.
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页码:313 / 318
页数:6
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