Linear response theory for one-point statistics in the inertial sublayer of wall bounded turbulence
Linear response theory for one-point statistics in the inertial sublayer of wall bounded turbulence
复制标题
壁界湍流惯性子层单点统计的线性响应理论
DOI：
10.1103/physrevlett.122.194502
复制
发表时间：
2019
影响因子：
8.6
通讯作者：
and Y. Tsuji
中科院分区：
文献类型：
--
作者：
Y. Kaneda;Y. Yamamoto;and Y. Tsuji
热平衡系统统计力学中众所周知的线性响应理论的思想应用于壁界湍流 (WBT) 惯性子层中的单点统计。各向同性湍流中从大尺度到小尺度的能量传递与 WBT 中壁法线方向的动量传递之间的密切类比在应用中起着关键作用。该应用程序给出了有限雷诺数对统计数据的影响的估计。这些估计与湍流通道流的高分辨率直接数值模拟的数据一致。
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.