回転系における乱流の特性(1)

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This paper is to consider the decay of weak homogeneous turbulence in the presence of a constant angular velocity with which the whole system is rotating. In order to find out the first-order effect of the rotation, the centrifugal force may be neglected compared with the Coliolis force. The result shows that the permanence of big eddies is no longer true but the ratio of energy-partition between three directional components tends to approach a certain asymptotic value depending on the initial conditions. Two simple examples, in which each energy spectrum is given by a (delta)-function, are shown as an illustration.
信州大学工学部の論文
1968-07-25