A level-set method for bubble growth in acoustic droplet vaporization

Cho, Sungwook; Son, Gihun

doi:10.1016/j.icheatmasstransfer.2018.02.016

Cited by 16 publications

(10 citation statements)

References 32 publications

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“…For a droplet-water mixture cell,

and

are interpolated from the droplet and water properties, as done in Ref. [25] using a level-set method. Eq.…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…The RP based numerical model has the advantage over the multidimensional numerical models for ADV developed in Refs. [24] , [25] , [26] that it can use a very fine mesh needed for the calculation of the initial bubble nucleus. Recently, Lacour et al [27] applied the RP based numerical model to investigate the ultimate fate of a DDFP bubble nucleus forming in a DDFP droplet and determine the ADV threshold in various acoustic frequencies.…”

Section: Introductionmentioning

confidence: 99%

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Numerical investigation of acoustic vaporization threshold of microdroplets

Park

Son

2021

Ultrasonics Sonochemistry

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“…For a droplet-water mixture cell,

and

are interpolated from the droplet and water properties, as done in Ref. [25] using a level-set method. Eq.…”

Section: Mathematical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical investigation of acoustic vaporization threshold of microdroplets

Park

Son

2021

Ultrasonics Sonochemistry

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“…In the numerical simulation, the following specific numerical values are used for the physical properties of the fluid: ρ l = 998 kg/m 3 , ρ g = 1.1 kg/m 3 , σ = 0.0728 N/m, µ l = 0.001 Pa⋅s, µ g = 1.8⋅10 5 Pa⋅s. Figure 1 shows the evolution of bubble shape in its rising process.…”

Section: Validationmentioning

confidence: 99%

“…With the development of bubble dynamics research, level set method has be wildly used in tracking bubble Interface. The recent research work includes: Cho and Son [5] use the level set method to research the influence of wall and ambient temperature on the bubble motion in the acoustic droplet vaporization condition and Xu [6] studied bubbles migration induced by thermal capillary force under uniform incident heat radiation condition, by use level set method.…”

Section: Introductionmentioning

confidence: 99%

Investigation of bubbles interaction and coalescence boiling in the boiling heat transfer process

2019

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This paper presents a new approach to investigate the bubbles movements and their interaction in the boiling heat transfer process. Based on the study of the wake flow of single rising bubble, the interaction of bubble pairs, such as interaction and coalescence boiling, is experimentally and numerically simulated. The validity of the numerical simulation was verified by the experimental pictures captured by high speed CCD camera. The wakes of two bubbles was revealed by obtained velocity field, and the interaction between two bubbles was analyzed in fluid dynamics. The simulations shows that the coalescence of bubbles may happen when one bubble enters the wake influence area of the main bubble. The velocity vector field shows that wake flow of the bubble is the major influencing factor determining the interaction between bubbles.

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“… 12 Cho and Son developed the motion of droplets and bubbles based on the level-set method. 13 Rabha and Buwa simulated the formation of a single bubble and multiple bubbles in shear-thinning fluids by virtue of the volume-of-fluid method. 14 Tomiyama and Sou applied the volume-of-fluid method to the numerical analysis of a single bubble.…”

Section: Introductionmentioning

confidence: 99%

Bubble Formation in Yield-Stress Fluids Using a Coupled Level-Set and Volume-of-Fluid Method

Cao

Bai

et al. 2020

ACS Omega

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The bubble formation under the influence of orifice diameter submerged in yield-stress fluids was studied numerically using a coupled level-set (LS) and the volume-of-fluid (VOF) method and was in contrast with that seen in Newtonian fluids. The bubble formation process had a good consistency by virtue of comparing numerical simulation and experiment. The process of bubble formation could be divided into two parts, bubble expansion stage and stretch stage. The influence of orifice diameter and liquid rheological characteristics (consistency coefficient, flow index, and yield stress) on the bubble formation parameters (the bubble formation time, detachment volume, and aspect ratio) was investigated. The results revealed that the bubble detachment volume increases with the increase of orifice diameter, consistency coefficient, flow index, and yield stress. In different kinds of fluids, the formation time and detachment volume of bubbles in the shear-thinning fluid were the lowest, followed by the Newtonian fluid, and finally, in yield-stress fluids.

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A level-set method for bubble growth in acoustic droplet vaporization

Cited by 16 publications

References 32 publications

Numerical investigation of acoustic vaporization threshold of microdroplets

Numerical investigation of acoustic vaporization threshold of microdroplets

Investigation of bubbles interaction and coalescence boiling in the boiling heat transfer process

Bubble Formation in Yield-Stress Fluids Using a Coupled Level-Set and Volume-of-Fluid Method

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