Anisotropic velocity correlation spectrum at small scales in a homogeneous turbulent shear flow.
A simple theoretical analysis and direct numerical simulations on 512(3) grid points suggest that the velocity correlation spectrum tensor in the inertial subrange of homogeneous turbulent shear flow at high Reynolds number is given by a simple form that is an anisotropic function of the wave vector. The tensor is determined by the rate of the strain tensor of the mean flow, the rate of energy dissipation per unit mass, the wave vector, and two nondimensional constants.
Ishihara
Takashi
T
Department of Computational Science and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan. ishihara@cse.nagoya-u.ac.jp
Yoshida
Kyo
K
Kaneda
Yukio
Y