6 papers
Emergent odd response in active chiral films
Seema Chahal, Naveen Kumar D, Brato Chakrabarti
Active chiral fluids can support a nondissipative transport coefficient known as odd (or Hall) viscosity. Hydrodynamic descriptions of such fluids typically introduce odd viscosity…
Growing, Buckling, and Swirling: motility from polymerization
Naveen Kumar D, Michael J. Shelley, Brato Chakrabarti
Locomotion in low-Reynolds-number environments is achieved through a remarkable diversity of strategies, from flagellar rotation and ciliary beating to large-scale body deformation…
Reversibility, Chaos, and Attractors in Periodically Sheared Elastic Filaments
Francesco Bonacci, Brato Chakrabarti, Olivia du Roure +2
The dynamics of filaments in flow are central to understanding a wide range of biological and soft-matter systems, yet their behavior under time-dependent forcing remains poorly un…
Hydrodynamic instabilities in driven chiral suspensions
Seema Chahal, Brato Chakrabarti
Active Stokesian suspensions are conventionally understood to generate dipolar stresses that destabilize aligned states in the bulk and drive system-wide spatiotemporally chaotic f…
The physical consequences of sperm gigantism
Jasmin Imran Alsous, Brato Chakrabarti, Bryce Palmer +1
The male fruit fly produces ~1.8 mm long sperm, thousands of which can be stored until mating in a ~200 micron sac, the seminal vesicle. While the evolutionary pressures driving su…
Geometric Effects in Large Scale Intracellular Flows
Olenka Jain, Brato Chakrabarti, Reza Farhadifar +3
This work probes the role of cell geometry in orienting self-organized fluid flows in the late stage Drosophila oocyte. Recent theoretical work has shown that a model, which relies…