Bubble measurements in a gas-liquid jet
Bubble measurements in a gas-liquid jet
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DOI：
10.1080/00986449608936431
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发表时间：
1996
影响因子：
2.5
通讯作者：
K. N. Stanley;D. Nikitopoulos
中科院分区：
文献类型：
--
作者：
K. N. Stanley;D. Nikitopoulos
Abstract Measurements have been carried out in the developing and fully developed regions of a free, axisymmetric, isothermal, air-water, bubbly jet. Three experiments have been conducted at a fixed jet-exit Reynolds number and gas superficial velocity using three different bubble injector assemblies producing bubbles of moderately different average sizes and size distributions. The volume fraction of the bubbly jet flow examined in this study is low and the resulting dispersed flow is dilute. A one-component Phase-Doppler Velocimetry system has been employed to measure bubble size and velocity non-intrusively. Visual data collected simultaneously with the light-scattering measurements were analyzed with the aid of image processing and used to verify the trends portrayed by the light-scattering measurements and to determine average bubble size. Our measurements show that, even in the dilute flow examined here, differences in initial bubble-size and size distribution can influence the RMS velocity fluctuat...
