57 citations · 136 across the 7 of their papers we have counts for
7 papers
Intermittency in the not-so-smooth elastic turbulence
Rahul K. Singh, Prasad Perlekar, Dhrubaditya Mitra +1
Elastic turbulence is the chaotic fluid motion resulting from elastic instabilities due to the addition of polymers in small concentrations at very small Reynolds ($\mbox{Re}$) num…
Intermittency, fluctuations and maximal chaos in an emergent universal state of active turbulence
Siddhartha Mukherjee, Rahul K. Singh, Martin James +1
A hydrodynamic model of active, low Reynolds number suspensions, shows the emergence of an asymptotic state with a universal spectral scaling and non-Gaussian (intermittent) fluctu…
Lagrangian Manifestation of Anomalies in Active Turbulence
Rahul K. Singh, Siddhartha Mukherjee, Samriddhi Sankar Ray
We show that Lagrangian measurements in active turbulence bear imprints of turbulent and anomalous streaky hydrodynamics leading to a self-selection of persistent trajectories - Le…
Anomalous diffusion and Lévy walks distinguish active from inertial turbulence
Siddhartha Mukherjee, Rahul K. Singh, Martin James +1
Bacterial swarms display intriguing dynamical states like active turbulence. Using a hydrodynamic model we now show that such dense active suspensions manifest super-diffusion, via…
Sedimenting Elastic Filaments in Turbulent Flows
Rahul K. Singh, Jason R. Picardo, Samriddhi Sankar Ray
We investigate the gravitational settling of a long, model elastic filament in homogeneous isotropic turbulence. We show that the flow produces a strongly fluctuating settling velo…
Dynamics of a long chain in turbulent flows: Impact of vortices
Jason R. Picardo, Rahul Singh, Samriddhi Sankar Ray +1
We show and explain how a long bead-spring chain, immersed in a homogeneous, isotropic turbulent flow, preferentially samples vortical flow structures. We begin with an elastic, ex…
Elasto-inertial Chains in a Two-dimensional Turbulent Flow
Rahul Singh, Mohit Gupta, Jason R. Picardo +2
The interplay of inertia and elasticity is shown to have a significant impact on the transport of filamentary objects, modelled by bead-spring chains, in a two-dimensional turbulen…