静止流体中の回転円筒まわりの乱流せん断流 : 波数空間表示による乱れ場の考察

概要

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To obtain the physical insight of processes controlling the turbulence structure of the shear flow on a rotating cylinder in a quiescent fluid, the spatial cross correlation equations and corresponding spectrum equations are derived using the rotating cylindrical coordinate system, and their structure is discussed. Also, a one point energy equation is examined and modified so that one can understand the flow of energy lucidly. Some terms in the spectrum equations can be explained by the same concept used in the theory of isotropic turbulence, but some other terms play different roles. In particular, the mixed effect of the spectral transfer and the component transfer is clarified. A figure is obtained to depict the physical interpretation of the terms of the spectrum equations.
一般社団法人日本機械学会の論文
1990-07-25