13 papers
Active flows drive anchoring of nematics at rigid walls
Michael Fang, Ioannis Hadjifrangiskou, Sumesh P. Thampi +2
Although confinement strongly influences flows in active materials, it remains unclear how active particles align at rigid boundaries when no thermodynamic anchoring is imposed. We…
Radiation Forces and Torques on Janus Cylinders
Mohd. Meraj Khan, Sumesh P. Thampi, Anubhab Roy
We investigate radiation-induced drag, lift, and torque on circular Janus cylinders under transverse-magnetic plane-wave illumination, considering metallo-dielectric and purely die…
Hydrodynamic capture and release of a microswimmer by a meniscus corner
Subhasish Guchhait, Harshita Tiwari, Sumesh P. Thampi +1
Biological microswimmers alter their motility in complex corner geometries, facilitating their survival. However, the dynamical features of low-Reynolds-number swimming at corners…
Lattice Boltzmann Method for Electromagnetic Wave Scattering
Mohd. Meraj Khan, Sumesh P. Thampi, Anubhab Roy
In this work, the lattice Boltzmann method (LBM) is assessed as a time-domain numerical approach for electromagnetic wave scattering. Owing to its explicit formulation and suitabil…
Shape, confinement and inertia effects on the dynamics of a driven spheroid in a viscous fluid
Aditya Bhowmik, Kevin Stratford, Oliver Henrich +1
The dynamics of anisotropic particles in viscous flows underpin a wide range of processes in soft matter, microfluidics, and targeted drug delivery. Here, we investigate the motion…
Bridging Elastic and Active Turbulence
Vedad Dzanic, Sumesh P. Thampi, Julia M. Yeomans
Remarkably, even under negligible inertia, the addition of microstructural agents can generate chaotic flow fields. Such behavior can arise in polymer solutions, leading to elastic…