34 citations · 70 across the 7 of their papers we have counts for
7 papers
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…
Intermittent fluctuations determine the nature of chaos in turbulence
Aikya Banerjee, Ritwik Mukherjee, Sugan Durai Murugan +2
We adapt recent ideas for many-body chaos in nonlinear, Hamiltonian fluids [Murugan \textit{et al.}, Phys. Rev. Lett. 127, 124501 (2021)] to revisit the question of the Reynolds nu…
An upper critical dimension for dynamo action: A -dimensional closure model study
Sugan Durai Murugan, Giorgio Krstulovic, Dario Vincenzi +1
We construct a -dimensional Eddy Damped Quasi-Normal Markovian (EDQNM) Closure Model to study dynamo action in arbitrary dimensions. In particular, we find lower and upper…
Turbulent flows are not uniformly multifractal
Siddhartha Mukherjee, Sugan D. Murugan, Ritwik Mukherjee +1
The Frisch-Parisi multifractal formalism remains the most compelling rationalisation for anomalous scaling in fully developed turbulence. We now show that this formalism can be ada…
On the thermalization of the three-dimensional, incompressible, Galerkin-truncated Euler equation
Sugan Durai Murugan, Samriddhi Sankar Ray
The long-time solutions of the Galerkin-truncated three-dimensional, incompressible Euler equation relax to an absolute equilibrium as a consequence of phase space and kinetic ener…
Suppressing thermalization and constructing weak solutions in truncated inviscid equations of hydrodynamics: Lessons from the Burgers equation
Sugan D. Murugan, Uriel Frisch, Sergey Nazarenko +2
Finite-dimensional, inviscid equations of hydrodynamics, such as the zero-viscosity, one-dimensional Burgers equation or the three-dimensional incompressible Euler equation, obtain…
Many-body Chaos in Thermalised Fluids
Sugan D. Murugan, Dheeraj Kumar, Subhro Bhattacharjee +1
Linking thermodynamic variables like temperature and the measure of chaos, the Lyapunov exponents , is a question of fundamental importance in many-body systems. By using no…