Turbulent Structure of a Gas-Liquid Impinging Jet

被引:0
|
作者
S. V. Alekseenko
D. M. Markovich
V. I. Semenov
机构
来源
Fluid Dynamics | 2002年 / 37卷
关键词
submerged impinging jet; gas-liquid; turbulence; coherent structures;
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摘要
The turbulent structure of a submerged axisymmetric impinging jet containing small gas bubbles is studied experimentally under conditions of periodic external excitation. On the basis of measuring the surface-friction pulsatory component in the jet impinging on an obstacle, the effect of the suppression of large-scale eddies at large gas volume fractions is registered. The conditions of resonant growth of coherent structures and the suppression of wide-band turbulence are determined for both the single-phase and the two-phase impinging jet. An analysis of the development of different pulsatory friction components in the impinging-jet gradient region is presented.
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页码:684 / 694
页数:10
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