Abstract
Inspired by the bionic structure, a honeycomb network was designed according to Bejan’s Constructal theory and manufactured via 3D-printing. The flow characteristics of the liquid–liquid system with an extremely low viscosity ratio (λ ~ 0.001) were investigated. Typical dumbbell-like plugs were observed and the evolution of their forms in the straight channel was presented. The overall flow status in the honeycomb network was classified into three types, namely, asymmetrical flow, symmetrical flow, and sphere flow. The uneven breakup of mother droplet at the Y-junction of part 2, which caused the final uniformity of droplets distribution, was attributed to the feedback from unbalanced flow resistance of downstream channels. The competition behaviors of the droplet pair, including squeezing, splitting and no-collision, were observed in the convergences, while the coalescence did not occur. Furthermore, it was found that the present constructal design with varied channel size was beneficial to the droplet breakup. The size of droplet decreased and the number of them increased along the honeycomb network, leading to the increased the contact area between the two phases.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
