8 citations · 8 across the 4 of their papers we have counts for
5 papers
A Reynolds-like Criterion for the Onset of Universal Active Turbulence
Kunal Kumar, Sandip Sahoo, Kirti Kashyap +4
Beyond a critical Toner--Tu drive, bacterial turbulence exhibits universal statistics, including a parameter-independent energy spectrum . We show that the same…
Geometry, elasticity, and activity in the transport of self-propelled filaments in turbulence
Kunal Kumar, Aliv Sahoo, Rahul Kumar Singh +1
We investigate the transport of elastic active filaments in two-dimensional turbulence, focusing on how propulsion geometry and elasticity determine vortex trapping and transport.…
Fringe around a Beet Slice: Wetting-induced Dimple in a Thin Liquid Film
Zhengyang Liu, Kunal Kumar, Yicong Fu +3
When a slice of beet is placed on a plate with a thin layer of beet juice, one can observe a clear fringe around the beet, where the color is more translucent than the rest of the…
Turbulence-Induced Fluctuating Interfaces in Heterogeneously-Active Suspensions
Siddhartha Mukherjee, Kunal Kumar, Samriddhi Sankar Ray
We investigate the effects of heterogeneous (spatially varying) activity in a hydrodynamical model for dense bacterial suspensions, confining ourselves to experimentally realizable…
Onset of Intermittency and Multiscaling in Active Turbulence
Kolluru Venkata Kiran, Kunal Kumar, Anupam Gupta +2
Recent results suggest that highly active, chaotic, non-equilibrium states of living fluids might share much in common with high Reynolds number, inertial turbulence. We now show,…