Effect of Velocity Ratio,Viscosity Ratio,Contact Angle,and Channel Size Ratio on Droplet Formation  

作　　者：Mohammed Bourega Ibrahim Kromba Khadidja Feah Arbi Sofiane Souimane 

机构地区：[1]Biomedical Engineering Laboratory,Abu Bakr Belkaid University,Tlemcen,13000,Algeria

出　　处：《Fluid Dynamics & Materials Processing》2023年第10期2471-2480,共10页流体力学与材料加工（英文）

摘　　要：This study uses a T-junction to examine the effects of different parameters(velocity ratio,viscosity,contact angle,and channel size ratio)on the generation of microdroplets,related rate,and size.More specifically,numerical simulations are exploited to investigate situations with a velocity varying from 0.004 to 1.6 m/s for the continuous phase and from 0.004 to 0.8 m/s for the dispersed phase,viscosity ratios(0.668,1,6.689,10,66.899),contact angle 80°<θ<270°and four different canal size ratios(1,1.5,2 and 4).The results show that canal size influences droplet size and the generation rate.The contact angle has an impact on the form and the quality of generated droplets.Moreover,the relationship between velocity and viscosity ratios,droplet size,and generation rate is non-monotonic.

关 键 词：Microfluidics T-junction droplet generator droplet size droplet diameter generation rate 

分 类 号：O35[理学—流体力学]