交差独立完結仮説による非一様乱流の統計理論(乱流基礎(1),一般講演)

概要

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In the previous study, a closed set of equations has been derived for the mean velocity and the one- and two-point velocity distributions of inhomogeneous turbulence in n incompressible viscous fluid from the Lundgren-Monin equations for the multi-point velocity distributions using the cross-independence closure hypothesis by Tatsumi. In the present study, a solitary bi-normal velocity distribution is obtained, which represents an inertial normal velocity distribution associated with a normal spatial distribution of the energy-dissipation rate. This velocity distribution provides us with a basic distribution which can be superposed for constructing complex turbulent flows of practical importance. First, the turbulent wakes behind spherical- and cylindrical-bodies are worked out and discussed.
日本流体力学会の論文
2008-09-04