Particle trapping in merging flow junctions by fluid-solute-colloid-boundary interactions
Particle trapping in merging flow junctions by fluid-solute-colloid-boundary interactions
复制标题
通过流体-溶质-胶体-边界相互作用捕获合并流动连接处的粒子
DOI:
10.1103/physrevfluids.5.024304
复制
发表时间:
2020
影响因子:
2.7
通讯作者:
Shen, Amy Q.
中科院分区:
文献类型:
--
作者:
Shin, Sangwoo;Ault, Jesse T.;Toda-Peters, Kazumi;Shen, Amy Q.
Merging of different streams in channel junctions represents a common mixing process that occurs in systems ranging from soda fountains and bathtub faucets to chemical plants and microfluidic devices. Here, we report a spontaneous trapping of colloidal particles in a merging flow junction when the merging streams have a salinity contrast. We show that the particle trapping is a consequence of nonequilibrium interactions between the particles, solutes, channel, and the freestream flow. A delicate balance of transport processes results in a stable near-wall vortex that traps the particles. We use three-dimensional particle visualization and numerical simulations to provide a rigorous understanding of the observed phenomenon. Such a trapping mechanism is unique from the well-known inertial trapping enabled by vortex breakdown [Proc. Natl. Acad. Sci. USA 111, 4770 (2014)PNASA60027-842410.1073/pnas.1321585111], or the solute-mediated trapping enabled by diffusiophoresis [Phys. Rev. X 7, 041038 (2017)2160-330810.1103/PhysRevX.7.041038], as the current trapping is facilitated by both the solute and the inertial effects, suggesting a new mechanism for particle trapping in flow networks.
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DOI:
--
发表时间:
2013
期刊:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
A. Petroff;O. Devauchelle;H. Seybold;D. Rothman
通讯作者:
D. Rothman
影响因子:
12.5
作者:
Shin, Sangwoo;Ault, Jesse T.;Stone, Howard A.
通讯作者:
Stone, Howard A.
DOI:
10.1063/1.168744
发表时间:
1998-11-01
期刊:
COMPUTERS IN PHYSICS
影响因子:
--
作者:
Weller, HG;Tabor, G;Fureby, C
通讯作者:
Fureby, C
影响因子:
2.9
作者:
N. Cevheri;M. Yoda
通讯作者:
M. Yoda
影响因子:
3.7
作者:
Ault, Jesse T.;Shin, Sangwoo;Stone, Howard A.
通讯作者:
Stone, Howard A.