Experimental investigation of bubble dynamics near a double-layer plate with a circular hole

Chen, Yingyu; Yao, Xiongliang; Cui, Xiongwei; Gou, Yuxin

doi:10.1016/j.oceaneng.2021.109715

Cited by 11 publications

(2 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The behavior characteristics of bubbles have been extensively studied [11][12][13] . Ding et al studied the formation and motion laws of bubbles in water, and found the final bubble ascending velocity fluctuated around a certain level.…”

Section: Introductionmentioning

confidence: 99%

Ascending motion of bottom-blown bubbles in vertical channels

Zhao

Liu

et al. 2023

Preprint

View full text Add to dashboard Cite

The gas-liquid two-phase flow is widely applied in engineering. Studying the bubble movement in the liquid phase is valuable for achieving efficient operation of relevant reactors. In this study, the ascending morphology of single-pore bubbles and double-pore bubbles in liquids was photographed by building a visualization experimental setup. Together with MATLAB, the effects of different variables on the ascending of bottom-blown bubbles were analyzed. Experimental results showed the bubble departure diameter was enlarged with the increase of pore inner diameter. At larger pore inner diameter, the bubble orbits were more disorderly, and the ultimate bubble velocity was smaller. At larger gas flow rate, the orbit of single bubbles was closer to a straight line, and the disturbance of double bubbles was intensified, leading to coalescence. The ultimate bubble velocity in water was accelerated with the increase of gas flow rate, and when the number of pores changed, the flow rate was more influential than the pore inner diameter on the ultimate bubble velocity. The centroid orbits of single bubbles were not significantly different between the two liquid-phase conditions, but the swinging amplitude of double bubbles in water was smaller than that in the 0.75% NaCl solution. The horizontal velocities were not significantly different, but the first velocity and ultimate velocity of bubbles at the vertical level in the 0.75% NaCl solution were both larger than those in water. These findings offer basic data for research on bubble strengthening and blending effects in vertical channels.

show abstract

Section: Introductionmentioning

confidence: 99%

Ascending motion of bottom-blown bubbles in vertical channels

Zhao

Liu

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Liu et al [30] numerically and experimentally investigated the jet of the cavitation bubble under the combined effect of a free surface and a fixed flat plate with a circular opening. Furthermore, Chen et al [31] showed the bubble dynamics near a double-layer plate with a circular hole and divided the bubble morphology into five categories according to the feature of the inrushing bubble. Trummler et al [32] revealed the effect of the crevice geometry on jet formation, wave dynamics, and wall-pressure distribution.…”

Section: Introductionmentioning

confidence: 99%