Turbulence singularities at moderate Reynolds numbers

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作者
Bershadskii, A.G. [1 ]
机构
[1] Makeev Structural Engineering Inst
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Fluid Dynamics;
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摘要
Degeneration and spectral dynamics in the rotating coordinate system of a large-scale vortex are investigated. If the cascade mechanism is suppressed mainly by the wave mechanism, then in place of a power-law dependence in the law of fluctuation homogeneous turbulence energy attenuation an exponential type attenuation law is realized. Then, when the inertial waves extract the energy principally in the viscous layers on fixed walls (such that the mean distances between these layers can be considered invariant), the index of exponential attenuation is independent of Re.
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页码:703 / 706
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