Numerical study of drop behavior in a pore space

Huang, Fenglei; Chen, Zhe; Li, Zhipeng; Gao, Zhengming; Derksen, J. J.; Komrakova, Alexandra

doi:10.1016/j.ces.2020.116351

Cited by 8 publications

(2 citation statements)

References 36 publications

(43 reference statements)

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“…However, droplet distortion, collision, and evaporation between the nozzle and the target are absent. Droplet spatial behavior serves as a transitional link that can both represent the potential process of pesticide deposition and serve as feedback for the management of particle size [ [23] , [24] , [25] ]. The highest peak in the world, located in China's Qinghai-Tibet Plateau, is where the Yellow, Yangtze, and Lancang rivers originate.…”

Section: Introductionmentioning

confidence: 99%

Insights on droplet drift and effective utilization of pesticide in “Third Pole”：Qinghai-Tibet Plateau of China

Chen,

Weng,

Zhu

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Insights on droplet drift and effective utilization of pesticide in “Third Pole”：Qinghai-Tibet Plateau of China

Chen,

Weng,

Zhu

et al. 2024

Heliyon

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“…Recently, Huang and co‐workers [ 30 ] carried out numerical studies on the deformations and breakup of a liquid drop moving in a bulk flow flowing through a single pore. The authors used the 3‐D phase‐field lattice Boltzmann method.…”

Section: Introductionmentioning

confidence: 99%

Geometry‐driven coalescence of water droplets in a highly viscous fluid

et al. 2022

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This work is dedicated to numerical studies of the coalescence of water droplets moving in bitumen. The Navier-Stokes equations coupled with the volume of fluid model (VOF) using adaptive grids techniques, available in the commercial computational fluid dynamics (CFD) software Ansys Fluent 20R2, were solved numerically to investigate the behaviour of water droplets with diameters from 1 to 100 μm moving in rapidly converging and diverging microchannels of different sizes. The model has been validated against 3-D experimental data published in the literature. A good agreement has been demonstrated. The results of simulations revealed that the main parameter influencing coalescence is the bulk flow velocity in the channel. Analysis of unsteady simulations showed the existence of a critical flow velocity, above which no coalescence occurs, corresponding to capillary number Ca < 0.5 for droplets Reynolds number Re < 0.1. Besides, image processing analysis has been used for a mean droplet size estimation in different geometries. A mean size significantly increased due to the late coalescence occurring in a wider constriction.

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