Cluster formation in active emulsion DOI
Boris Kichatov, Alexey Korshunov, Vladimir Sudakov

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

An active emulsion consists of self-propelled droplets that are dispersed in another immiscible liquid. Under certain conditions, droplet clusters may form such a system. This study analyzes the process cluster formation an octane-in-water activated by ammonia. The movement is due to emergence Marangoni flow on surface droplets. It has been found formed when average velocity less than critical value. existence fact rate attachment proportional their and detachment from square velocity. At supercritical velocities, exceeds attachment. depends density increases as decreases.

Language: Английский

Migration of magnetic microparticles through a liquid–liquid interface under an external magnetic field DOI Creative Commons
Sourav Mondal, Niki Abbasi, Scott Tsai

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

Liquid–liquid interfaces play a pivotal role in various microfluidic processes involving microparticles, including coating, dissolution, controlled release of polyelectrolytes or drugs, and self-assembly processes. In all these cases, noninvasive techniques to manipulate the microparticle transport are essential. Magnetic manipulation offers an accessible straightforward means controlling motion magnetic particles within devices. microparticles commonly used for conformal polyelectrolyte coating drug encapsulation by passing them through liquid–liquid interface due their high saturation magnetization, stability, low toxicity. this work, we draw inspiration from lack studies on behavior near under conditions Reynolds numbers capillary action, despite its engineering relevance systems. We consider canonical flow configuration which particle is driven stagnation-point that generated when two different liquids toward one another. show how operating dictate whether will pierce become coated not illustrate via parameter-space plots. use results analysis understand influence fraction pass conformally coated, may be guide variety industrial

Language: Английский

Citations

0
Cluster formation in active emulsion DOI
Boris Kichatov, Alexey Korshunov, Vladimir Sudakov

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

An active emulsion consists of self-propelled droplets that are dispersed in another immiscible liquid. Under certain conditions, droplet clusters may form such a system. This study analyzes the process cluster formation an octane-in-water activated by ammonia. The movement is due to emergence Marangoni flow on surface droplets. It has been found formed when average velocity less than critical value. existence fact rate attachment proportional their and detachment from square velocity. At supercritical velocities, exceeds attachment. depends density increases as decreases.

Language: Английский

Citations

0