3D simulation of droplet coalescence in T-shaped microchannel

2nd International Conference on Frontiers of Materials Synthesis and Processing

Li, Lixiang^1 ; Lin, Ziheng^1 ; Fan, Wenyuan^1

School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, China^1

关键词: 3D simulations;    Continuous phase;    Dispersed phase;    Droplet coalescence;    Droplet volume;    T-shaped microchannels;    Volume of fluids;    Water flow rate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/493/1/012158/pdf
DOI  :  10.1088/1757-899X/493/1/012158

来源: IOP

【 摘 要 】

Three Droplet coalescence behaviour in T-shaped microchannel under different conditions is investigated numerically using coupled volume of fluid and level set (CLSVOF) method. The effects of continuous phase (water) flow rate and physical properties of dispersed phase are examined respectively. The results show that with the increase of water flow rate, the volume of coalesced droplet decreases, its deformation increases but coalesced time hasn't changed significantly. Droplet coalescence time go down, however the aspect ratio of the coalesced droplet increase first and then decrease in the order of pentanol, octanol and decanol, with no obvious impact on coalesced droplet volume.