Bubble entrapment during the recoil of an impacting droplet

Nguyen, Thanh-Vinh; Ichiki, Masaaki

doi:10.1038/s41378-020-0158-y

Cited by 12 publications

(4 citation statements)

References 31 publications

(34 reference statements)

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“…The described bubble entrapment mechanism during recoil with or without drop rebound is confirmed by more recent experiments, see e.g. [78,79] and references therein. Note that this mechanism is completely different from the bubble entrapment mechanism occurring in the very early stage of impact [80][81][82].…”

Section: Experiments Of Lin Et Al (2018)supporting

confidence: 78%

Spreading and rebound dynamics of sub-millimetre urea-water-solution droplets impinging on substrates of varying wettability

Wörner

Samkhaniani

Cai

et al. 2021

Applied Mathematical Modelling

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Section: Experiments Of Lin Et Al (2018)supporting

confidence: 78%

Spreading and rebound dynamics of sub-millimetre urea-water-solution droplets impinging on substrates of varying wettability

Wörner

Samkhaniani

Cai

et al. 2021

Applied Mathematical Modelling

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“…In the case of particle-laden drop-wall collisions, the particle size, volume fraction, and wettability of the particles and the surface are considered as influencing factors. In this regard, the particle-laden drops can be in the form of liquid marbles [10] и slurries [11], and surfaces, respectively, can be hydrophobic [12] and hydrophilic [13]. This study focuses on the particle-laden drops interacting with a hydrophobic surface.…”

Section: Introductionmentioning

confidence: 99%

Effect of Monodisperse Coal Particles on the Maximum Drop Spreading after Impact on a Solid Wall

Ashikhmin¹,

Khomutov²,

Волков³

et al. 2023

Preprint

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The effect of coal hydrophilic particles in water-glycerol drops on the maximum diameter of spreading along a hydrophobic solid surface is experimentally studied by analyzing the velocity of internal flows by Particle Image Velocimetry. The grinding fineness of coal particles was 45-80 μm and 120-140 μm, their concentration was 0.06 wt.% and 1 wt.%. The impact of particle-laden drops on a solid surface occurred at Weber numbers (We) from 30 to 120. It is revealed the interrelated influence of We and the concentration of coal particles on changes in the maximum absolute velocity of internal flows in a drop within the kinetic and spreading phases of the drop-wall impact. A physical model is formulated for internal convective flows in the longitudinal section of a drop parallel to the plane of the solid wall. The kinetic energy of translational motion of coal particles in a spreading drop compensates for the energy expended by the drop on sliding friction along the wall. At We=120, the inertia-driven spreading of the particle-laden drop is mainly determined by the dynamics of the deformable Taylor rim. An increase in We contributes to more noticeable differences in the convection velocities in spreading drops. When the drop spreading diameter rises at the maximum velocity of internal flows, a growth of the maximum spreading diameter occurs. The presence of coal particles causes a general tendency to reduce the drop spreading.

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“…In the case of particle-laden drop-wall collisions, the particle size, volume fraction, and wettability of the particles and the surface are considered as influencing factors. In this regard, the particle-laden drops can be in the form of liquid marbles [10] and slurries [11], and surfaces, respectively, can be hydrophobic [12] and hydrophilic [13]. This study focuses on the particle-laden drops interacting with a hydrophobic surface.…”

Section: Introductionmentioning

confidence: 99%

Effect of Monodisperse Coal Particles on the Maximum Drop Spreading after Impact on a Solid Wall

et al. 2023

View full text Add to dashboard Cite

The effect of coal hydrophilic particles in water-glycerol drops on the maximum diameter of spreading along a hydrophobic solid surface is experimentally studied by analyzing the velocity of internal flows by Particle Image Velocimetry (PIV). The grinding fineness of coal particles was 45–80 μm and 120–140 μm. Their concentration was 0.06 wt.% and 1 wt.%. The impact of particle-laden drops on a solid surface occurred at Weber numbers (We) from 30 to 120. It revealed the interrelated influence of We and the concentration of coal particles on changes in the maximum absolute velocity of internal flows in a drop within the kinetic and spreading phases of the drop-wall impact. It is explored the behavior of internal convective flows in the longitudinal section of a drop parallel to the plane of the solid wall. The kinetic energy of the translational motion of coal particles in a spreading drop compensates for the energy expended by the drop on sliding friction along the wall. At We = 120, the inertia-driven spreading of the particle-laden drop is mainly determined by the dynamics of the deformable Taylor rim. An increase in We contributes to more noticeable differences in the convection velocities in spreading drops. When the drop spreading diameter rises at the maximum velocity of internal flows, a growth of the maximum spreading diameter occurs. The presence of coal particles causes a general tendency to reduce drop spreading.

show abstract

Bubble entrapment during the recoil of an impacting droplet

Cited by 12 publications

References 31 publications

Spreading and rebound dynamics of sub-millimetre urea-water-solution droplets impinging on substrates of varying wettability

Spreading and rebound dynamics of sub-millimetre urea-water-solution droplets impinging on substrates of varying wettability

Effect of Monodisperse Coal Particles on the Maximum Drop Spreading after Impact on a Solid Wall

Effect of Monodisperse Coal Particles on the Maximum Drop Spreading after Impact on a Solid Wall

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