Collapsing behavior of spark-induced cavitation bubble in rigid tube

Li, Jie; Zhou, Maolin; Luo, Jing; Xu, Weilin; Zhai, Yanwei; Qu, Tong; Zou, Lingtao

doi:10.1016/j.ultsonch.2024.106791

Ultrasonics Sonochemistry

2024

DOI: 10.1016/j.ultsonch.2024.106791

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Collapsing behavior of spark-induced cavitation bubble in rigid tube

Jie Li,

Maolin Zhou,

Jing Luo

et al.

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2024

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Cited by 5 publications

References 61 publications

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Dynamics of cavitation bubbles in viscous liquids in a tube during a transient process

Wang,

Xu,

Ren

et al. 2024

Ultrasonics Sonochemistry

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Dynamics of cavitation bubbles in viscous liquids in a tube during a transient process

Wang,

Xu,

Ren

et al. 2024

Ultrasonics Sonochemistry

View full text Add to dashboard Cite

Mechanical Analysis of the Critical Conditions for Trapping and Detachment of Microscale Air Bubbles on the Pure Water Freezing Front

Shao,

Song,

Zhang

et al. 2024

Langmuir

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Icing is a widespread phase change phenomenon with implications for daily life and industrial production. Air bubbles form on the freezing front of pure water with dissolved air during the icing, which may affect the physical properties of ice. Controlling the behavior of air bubbles will be one method to change the physical properties of ice. To analyze the critical conditions for trapping and detachment of microscale air bubbles on a pure water freezing front, a mathematical model describing the forces on air bubble is developed on the basis of the principle of force equilibrium. Results show that the average accuracy of the present model in predicting the average air bubble detachment radius is about 62%, which is 30% higher than the model with the best prediction accuracy in the literature. Buoyant, temperature gradients, and hydrodynamic forces push air bubbles to detach from the freezing fronts, while adhesion force and gravity impede their detachment. Temperature gradient and adhesion forces are the main factors affecting the detachment of air bubbles from freezing fronts. The temperature gradient has the greatest effect on the air bubble detachment radius, while the tilt angle and liquid density have a lesser effect. When the temperature gradient is increased from 1000 to 10 000 K/m, the air bubble detachment radius decreases by 37.78%. Studying the forces acting on the air bubbles on the pure water freezing front is an important reference for the production of special ice bodies, phase change cold storage, and de-icing technology.

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Numerical study of cavitation bubble dynamics in a flowing tube

Wang,

Odumosu,

Wang

et al. 2024

Physics of Fluids

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Cavitation in tubes is a common occurrence in nature and engineering applications. Previous studies of cavitation bubble dynamics mainly consider bubbles in stagnant-water tubes, but the dynamics of cavitation bubbles in tubes with flow is not clear. This study investigates the dynamics of cavitation bubbles in tubes with flow by numerical simulations. The results show that, unlike bubbles in stagnant-water tubes, bubbles under the combined effects of water inflow and tube wall confinement exhibit asymmetric behavior along the axis of the tube. The inflow suppresses the development of the bubble interface near the tube inlet, causing that side of the interface to move with the inflow. In contrast, the expansion and contraction of the bubble and the generation of liquid jets occur on the side near the outlet. This feature results in significant asymmetry in the bubble interface; therefore, we introduce a skewness parameter to characterize the difference in length between the left and right parts of the bubble during the bubble evolution. The evolution of the bubble significantly affects the mass flow rate at the outlet of the tube, and even leads to backflow during the bubble contraction process.

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Collapsing behavior of spark-induced cavitation bubble in rigid tube

Cited by 5 publications

References 61 publications

Dynamics of cavitation bubbles in viscous liquids in a tube during a transient process

Dynamics of cavitation bubbles in viscous liquids in a tube during a transient process

Mechanical Analysis of the Critical Conditions for Trapping and Detachment of Microscale Air Bubbles on the Pure Water Freezing Front

Numerical study of cavitation bubble dynamics in a flowing tube

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