Linear Response Theory for One-Point Statistics in the Inertial Sublayer of Wall-Bounded Turbulence

被引：4
|
作者：
Kaneda, Yukio [1 ,4 ]
Yamamoto, Yoshinobu [2 ]
Tsuji, Yoshiyuki [3 ]
机构：
[1] Aichi Inst Technol, Ctr Gen Educ, Yakusa Cho, Toyota 4700392, Japan
[2] Univ Yamanashi, Dept Mech Engn, Kofu, Yamanashi 4008511, Japan
[3] Nagoya Univ, Dept Energy Sci & Engn, Nagoya, Aichi 4648601, Japan
[4] Nagoya Univ, Grad Sch Math, Nagoya, Aichi 4648601, Japan
来源：
PHYSICAL REVIEW LETTERS | 2019年 / 122卷 / 19期
关键词：
CHANNEL FLOW;
D O I：
10.1103/PhysRevLett.122.194502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The idea of linear response theory well known in the statistical mechanics for thermal equilibrium systems is applied to one-point statistics in the inertial sublayer of wall-bounded turbulence (WBT). A close analogy between the energy transfer from large to small scales in isotropic turbulence and the momentum transfer in the wall normal direction in WBT plays a key role in the application. The application gives estimates of the influence of the finite Reynolds number on the statistics. The estimates are consistent with data by high-resolution direct numerical simulations of turbulent channel flow.
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页数：5
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