Numerical study on coalescence behavior of suspended drop pair in viscous liquid under uniform electric field
Source abstract
Abstract
Coalescence of drops under externally applied electric field is a significant physical process, which has been applied in many applications such as emulsion breakup, electric dehydration and raindrop formation. The morphological characteristics of two identical adjacent drops under uniform electrical strength were numerically investigated in present study. From the simulated morphologies, the behavior of the meniscus, the major axis, the minor axis, and the cone angle of coalesced drop were analyzed in details. The results indicated that drop coalescence was dependent on the electric field strength, and only below a critical threshold, coalesce occurred. Though variation might occur in lengths of the meniscus, major\minor axis, and size in cone angles, a steady state can always be reached under which electro-coalescence complete. On the other hand, drops failed to coalesce if they could not reach a steady state, and even the coalesced drop rupture due to oversized electric filed strength. Analysis of coalescence behavior of suspended drop pair in viscous liquid under uniform electric field could further promote our understanding on the physical phenomenon of electro-coalescence and provide insight for the design of the electro-coalescers in practical applications.
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Research context
OpenAlex topics: Electrohydrodynamics and Fluid Dynamics · Electrowetting and Microfluidic Technologies · Fluid Dynamics and Heat Transfer
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Energy and Power Engineering, Jiangsu University 1 , Zhenjiang 212013, China
School of Mechanical and Automotive Engineering, RMIT University 2 , Bundoora 3083, Australia
Funding
National Natural Science Foundation of China · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province
References (49)
Show source-provided references
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