62 citations · 222 across the 6 of their papers we have counts for
6 papers
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…
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…
Emergence and melting of active vortex crystals
Martin James, Dominik Anton Suchla, Jörn Dunkel +1
Melting of two-dimensional (2D) equilibrium crystals, from superconducting vortex lattices to colloidal structures, is a complex phenomenon characterized by the sequential loss of…
Turbulence and turbulent pattern formation in a minimal model for active fluids
Martin James, Wouter J. T. Bos, Michael Wilczek
Active matter systems display a fascinating range of dynamical states, including stationary patterns and turbulent phases. While the former can be tackled with methods from the fie…
Vortex dynamics and Lagrangian statistics in a model for active turbulence
Martin James, Michael Wilczek
Cellular suspensions such as dense bacterial flows exhibit a turbulence-like phase under certain conditions. We study this phenomenon of "active turbulence" statistically by using…
How Violent are the Collisions of Different Sized Droplets in a Turbulent Flow?
Martin James, Samriddhi Sankar Ray
We study the typical collisional velocities in a polydisperse suspension of droplets in two and three-dimensional turbulent flow and obtain precise theoretical estimates of the dep…