Substance transfer behavior controlled by droplet internal circulation

Abstract

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Flow and Real-Time Substance Transfer at the Droplet-Level Microinterface during Contaminant Extraction

“…The physical model and meshing of the computational domain are shown in Figure S4. Computational methods employed were confirmed by previous research and can effectively characterize flow within droplets . Please refer to the Supporting Information for additional details on the computational domain.…”

“…17,21 Most study systems involve mixing, 22 extraction, 23 and reaction. 24 Investigating contaminant behavior at microinterfaces is critical in environmental science and technology.…”

“…Hence, analyzing internal droplet-flow patterns is necessary. Using microfluidic and numerical simulation, droplet generation and flow stages in microchannels have been investigated in detail. − Currently, micro-particle image velocimetry (micro-PIV) is the primary experimental approach for studying the internal flow of droplets; − numerical methods include the lattice Boltzmann method, , immersed boundary, and computational fluid dynamics (CFD) method. , Most study systems involve mixing, extraction, and reaction . Investigating contaminant behavior at microinterfaces is critical in environmental science and technology.…”

Droplet‐Based Millifluidic Synthesis of a Proton-Conducting Sulfonate Metal–Organic Framework

“…Because each droplet is essentially a miniature batch reactor, this ensures a narrow residence time distribution, which is difficult to achieve in a single phase microreactor. In addition, vortices within the droplets further enhance the mixing and the heat and mass transfer [46]. This results in droplets which are highly uniform in terms of chemical composition and reaction temperature, providing a highly controlled environment for chemical reactions to take place.…”

Vortex flow evolution in a growing microdroplet during co-flow in coaxial capillaries

“…On the other hand, this flow character could destroy some biological objects like cells. Therefore, the study of the flow pattern in a microdroplet under different flow conditions is an important challenge 45 .…”