An experimental study on the influence of fluid flow pattern on microbubble generation

被引：0
|
作者：
N. M. Nouri
A. Sarreshtehdari
E. Maghsoudi
A. Moosaie
机构：
[1] Iran University of Science and Technology,Applied Hydrodynamics Laboratory, Department of Mechanical Engineering
来源：
Forschung im Ingenieurwesen | 2008年 / 72卷
关键词：
Turbulent Kinetic Energy; Skin Friction; Void Fraction; Drag Reduction; Bubble Size;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Geometrical properties of generated microbubbles induced by different fluid flow patterns were investigated experimentally. Image processing method has been used to find microbubble size distribution and to determine bubbles’ roundness as well. Three types of flow patterns were produced by changing microbubble generator configuration in order to improve bubbles’ size distribution. These different geometrical configurations of designed microbubble generator were used to generate microbubbles in various air volume fractions. Obtained results confirm direct relation between generated microbubbles size and their distribution with fluid flow patterns. More complex geometry creating high turbulent regions are suggested to increase bubble breaking up especially for high values of void fractions.
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收藏
页码：233 / 240
页数：7
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