Measurement of spray-cloud characteristics with bubble image velocimetry for braking wave impact

Bodaghkhani, Armin; Dowdell, Joshua R.; Colbourne, Bruce; Muzychka, Y. S.; Naterer, G.F.

doi:10.1016/j.coldregions.2017.10.001

Cited by 10 publications

(1 citation statement)

References 42 publications

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“…Ryu et al determined the distribution of bubble velocities in a large void fraction area using the BIV technology. Armin et al analyzed the wave impact for producing the spray, and the velocities close to the impact region were measured using the BIV technology.…”

Section: Introductionmentioning

confidence: 99%

Bubble Size Distribution and Rise Velocity in a Jet Bubbling Reactor

Shuai

Wang

Huang

et al. 2019

Ind. Eng. Chem. Res.

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At low liquid jet velocity (u j ), bubble vortices do not appear and the bubble size distribution (BSD) shows a bimodal distribution. The number density function of large bubbles and small bubbles in the bottom section is higher and lower than that in the middle and top regions, respectively. At high u j , the bubble vortices appear and the BSD is a unimodal distribution. Below the nozzle outlet, the bubbles in the reactor center move from upward to downward, with the axial height increasing, and the position of the maximum bubble rise velocity appears near both walls of the reactor. As u j increases, the bubble downward and upward velocities increase, and the position corresponding to the maximum bubble rise velocity moves toward the walls. Above the nozzle outlet, the rise velocity of the bubble is larger in the center than that at the walls and increases with u j .

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Section: Introductionmentioning

confidence: 99%

Bubble Size Distribution and Rise Velocity in a Jet Bubbling Reactor

Shuai

Wang

Huang

et al. 2019

Ind. Eng. Chem. Res.

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Characterization of the bubble swarm trajectory in a jet bubbling reactor

et al. 2019

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The bubble swarm trajectory in the jet bubbling reactor is measured through the bubble image velocimetry (BIV) technique. The result shows that the bubble swarm rises straightly when the jet Reynolds number is lower than 7,000. However, when the jet Reynolds number exceeds 14,000, the bubble swarm exhibits vortex‐like motion, and the bubble vortices oscillate periodically. The oscillating frequency of bubble vortices under the gas bubbling condition is lower than the flapping frequency of pure liquid jet. Moreover, the moving region and oscillating frequency of bubble vortices increase with the jet Reynolds number. The superficial gas velocity has little effect on the bubble swarm trajectory and the oscillating frequency. An empirical correlation between the oscillating frequency of bubble vortices and the jet Reynolds number is built based on the simple harmonic vibration theory.

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Research progress on the hydrodynamic performance of water-air-bubble mixed flows around a ship

Zhang

Wan

2022

J Hydrodyn

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Measurement of spray-cloud characteristics with bubble image velocimetry for braking wave impact

Cited by 10 publications

References 42 publications

Bubble Size Distribution and Rise Velocity in a Jet Bubbling Reactor

Bubble Size Distribution and Rise Velocity in a Jet Bubbling Reactor

Characterization of the bubble swarm trajectory in a jet bubbling reactor

Research progress on the hydrodynamic performance of water-air-bubble mixed flows around a ship

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