Simulation of bidisperse colloidal centrifugal sedimentation using a mixture viscosity model

Understanding the sedimentation behavior of bidisperse colloidal suspensions is critical in determining their stability and separation. While centrifugation is often used to accelerate separation, the settling of bidisperse colloids and their phase …

High-speed drop impact onto moving pools: ejecta sheets and splashing

76th Annual APS DFD Meeting (Session ZC20.1 -- 12:50 Tuesday)

Droplet impact dynamics on shallow pools

When a fast droplet impacts a pool of the same fluid, a thin ejecta sheet that dominates the early-time dynamics emerges within the first few microseconds. Fluid and impact properties are known to affect its evolution; we experimentally reveal that …

Droplet impact dynamics on shallow pools

75th Annual APS DFD Meeting (Session T12.6 -- 17:15 Monday)

Droplet splashing on solid and liquid surfaces

*Invited talk:* Brown Center for Fluid Mechanics Seminar Series

Intersymbol interference for electrophoretic molecular communication in circular duct channels

This letter investigates electrophoretic molecular communication (EMC) operating in circular duct channels. EMC utilizes the time-varying electrophoretic force that can controllably induce the movement of charged particles to enhance communication …

Mixing between coalescing droplets

IOP Printing for the Future 2022

Droplet impact onto finite-depth pools

APS March Meeting 2022 (Session G11.1 -- 11:30 Tuesday)

Electrophoretic molecular communication with time-varying electric fields

This article investigates a novel electrophoretic molecular communication mechanism that utilizes a time-varying electric field, which induces time-varying molecule velocities and in turn improves communication performance. For a sinusoidal field, we …

Internal flows during droplet coalescence

*Invited talk:* QMUL Colloid & Interface Webinar