Numerical simulations of the primary Bjerknes force experienced by bubbles in a standing ultrasonic field: Nonlinear vs. linear

Vanhille, Christian; Campos-Pozuelo, Cleofé

doi:10.1016/j.wavemoti.2014.06.001

Cited by 9 publications

(4 citation statements)

References 24 publications

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“…Results of modeling a primary Bjerknes force in an ultrasonic wave in the presence of bubbles in a fluid are given in work [25]. It is noted that the obtained results at small amplitudes are consistent with the classical theory.…”

Section: Literature Review and Problem Statementmentioning

confidence: 56%

Investigation of the effect of characteristics of gascontaining suspensions on the parameters of the process of ultrasonic wave propagation

Morkun

Tron

et al. 2017

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 56%

Investigation of the effect of characteristics of gascontaining suspensions on the parameters of the process of ultrasonic wave propagation

Morkun

Tron

et al. 2017

EEJET

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“…In contrast to the second stage, the pressure difference in and out the bubble is bigger, and the size of bubble, especially the thickness D bmax of ventilation bubble, increases faster, as can be seen in frame (a) of figure 18, when γ ⩽ 0.125. Besides, the free surface begins to exert a repulsive force to the upper side of ventilation bubble, similar to the Bjerknes force between surfaces bubbles (Vanhille and Campos Pozuelo 2014) or free surface and bubble (Li et al 2016, Cui et al 2018, which induces the center of the ventilation bubble to move downward, however this effect is relatively small based on the experiment data in frames (c) and (d), in which the declination trend of L bcenter L bmax and D bcenter D bmax have no obvious change. Which should be mentioned is that as the moving cylinder is nearly touching the freesurface, the ventilation bubble becomes 'fat', since D bmax has an apparent increase at this stage, as can be seen in frames (a) and (d).…”

Section: Influence Of the Fr On The Ventilation Bubble Dynamicmentioning

confidence: 99%

Experimental investigation of ventilation bubble dynamics around a vertically moving cylinder under reduced ambient pressure

Chen¹,

Xiao²,

Gong³

et al. 2022

Fluid Dyn. Res.

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Ventilation bubble is widely used to reduce friction drag of object travelling in fluid. A large number of experimental studies are performed on the ventilation bubble in water tunnel, while little is known about it around vertically moving cylinder under reduced pressure. We aim to investigate dynamics of the ventilation bubble in vertically moving case. To support the study, a specialized experiment set-up is designed, based on which images of ventilation bubble around vertically moving cylinder under reduced ambient pressure can be captured and experiments are conducted to study the influence of velocities and flow rate on the ventilation bubble dynamics. In detail,We first describe the development of ventilation bubble and details of re-entrant jet. In addition to that, two types of re-entrant jets are observed, and the maximum velocity of re-entrant jet is obtained. Besides, four modes of development of ventilation bubbles' closure patterns are concluded. Finally, geometric features of ventilation bubble are obtained through image processing which are then described and analysed in detail.The above results contribute to the research on the control of vertically moving cylinder through ventilation bubble.

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“…The results showed that the cavitation bubble cluster is mainly subjected to a first-order Bjerknes force caused by the pressure gradient of the oscillating bubble. When the acoustic pressure amplitude was small, the first-order Bjerknes force depended on the resonant frequency of the system; as the acoustic pressure amplitude increased, the first-order Bjerknes force had a significant effect on both bubble motion and aggregation patterns [ 31 ]. Zhang Zhiqiang applied the fluid–solid coupling (FSI) method to establish a multi-physical field coupling model for an acoustic–chemical reactor and systematically investigated the effect of sound field orientation on the sound field distribution characteristics.…”

Section: Ultrasonic Cleaning Technology and Applicationmentioning

confidence: 99%

Use of Ultrasonic Cleaning Technology in the Whole Process of Fruit and Vegetable Processing

Zhou

Sarpong²,

Zhou³

2022

Foods

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In an era of rapid technological development, ultrasound technology is being used in a wide range of industries. The use of ultrasound technology in fruit and vegetable processing to improve production efficiency and product quality has been an important research topic. The cleaning of whole fresh fruits and vegetables is an important part of fruit and vegetable processing. This paper discusses the development process of components of the ultrasonic equipment, the application of ultrasonic technology in fruit and vegetable cleaning, and the research advances in ultrasonic cleaning technology. Moreover, the feasibility of ultrasonication of fruits and vegetables for cleaning from the perspectives of microbial inactivation, commodity storage, and sensory analysis were discussed. Finally, the paper identified the inevitable disadvantages of cavitation noise, erosion, and tissue damage in fruit and vegetable processing and points out the future directions of ultrasonic fruit and vegetable cleaning technology.

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Numerical simulations of the primary Bjerknes force experienced by bubbles in a standing ultrasonic field: Nonlinear vs. linear

Cited by 9 publications

References 24 publications

Investigation of the effect of characteristics of gascontaining suspensions on the parameters of the process of ultrasonic wave propagation

Investigation of the effect of characteristics of gascontaining suspensions on the parameters of the process of ultrasonic wave propagation

Experimental investigation of ventilation bubble dynamics around a vertically moving cylinder under reduced ambient pressure

Use of Ultrasonic Cleaning Technology in the Whole Process of Fruit and Vegetable Processing

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Numerical simulations of the primary Bjerknes force experienced by bubbles in a standing ultrasonic field: Nonlinear vs. linear

Cited by 9 publications

References 24 publications

Investigation of the effect of characteristics of gas­containing suspensions on the parameters of the process of ultrasonic wave propagation

Investigation of the effect of characteristics of gas­containing suspensions on the parameters of the process of ultrasonic wave propagation

Experimental investigation of ventilation bubble dynamics around a vertically moving cylinder under reduced ambient pressure

Use of Ultrasonic Cleaning Technology in the Whole Process of Fruit and Vegetable Processing

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Investigation of the effect of characteristics of gascontaining suspensions on the parameters of the process of ultrasonic wave propagation

Investigation of the effect of characteristics of gascontaining suspensions on the parameters of the process of ultrasonic wave propagation