Hydrodynamic Study of a Rising Bubble in the Presence of Cetyltrimethylammonium Bromide Surfactant

被引：0
|
作者：
Karimi, Safoora [1 ]
Abiri, Ana [1 ]
Shafiee, Mojtaba [1 ]
机构：
[1] Jundi Shapur Univ Technol, Dept Chem Engn, Dezful, Iran
来源：
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION | 2023年 / 42卷 / 02期
关键词：
Drag coefficient; Bubble rising; Cetyltrimethylammonium bromide; Equivalent diameter; Surfactant Concentration; Terminal velocity; MASS-TRANSFER; DRAG COEFFICIENT; GAS-BUBBLES; BEHAVIOR; WATER; SIZE; THERMODYNAMICS; INTERFACE; VELOCITY; RISE;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The performance of surfactants especially in two-phase systems, depends on their type, Hydrophile-Lipophile Balance (HLB) number, concentration, and whether the surfactant is ionic or non-ionic. The current work was conducted to study the effect of the presence of Cetyltrimethylammonium Bromide (CTAB), a cationic surfactant, in air -water systems. Thus, the behavior of a single air bubble rising in aqueous CTAB solutions was studied experimentally. The independent test variables are solution concentration (0.4-1.6mM) and bubble diameter (3.5-4.6mm). The effect of these variables on rising velocity, bubble shape, and drag coefficient has been studied. Due to the importance of the drag coefficient in two-phase fluid, the effect of Reynolds number, Eotvos number, and aspect ratio on it has also been evaluated. Experiments have been performed at high Reynolds numbers (850
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页码：486 / 499
页数：14
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