15 papers
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.…
Parity-Dependent Scaling of Velocity-Gradient Correlations in Turbulence
Anwesha Dey, Ritwik Mukherjee, Aikya Banerjee +1
We investigate two-point velocity-gradient correlation functions in homogeneous isotropic turbulence using exact relations and direct numerical simulations. The second-order gradie…
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…
The significance of two-way coupling in two-dimensional, dusty turbulence
Harshit Joshi, Amal Manoharan, Samriddhi Sankar Ray
The significance of small-scale forcing of particles on the carrier two-dimensional turbulent flow has been shown to influence the spectral scaling properties of the carrier fluid.…
Reduction of Triadic Interactions Suppresses Intermittency and Anomalous Dissipation in Turbulence
Anikat Kankaria, Ritwik Mukherjee, Sugan Durai Murugan +2
We investigate how the defining statistical features of three-dimensional turbulence respond to systematic reductions of the Fourier-space triadic interaction network. Using direct…
Hydrodynamics of Dense Active Fluids: Turbulence-Like States and the Role of Advected Activity
Sandip Sahoo, Siddhartha Mukherjee, Samriddhi Sankar Ray
Dense suspensions of self-propelled bacteria and related active fluids exhibit spontaneous flow generation, vortex formation, and spatiotemporally chaotic dynamics despite operatin…