117 citations · 479 across the 10 of their papers we have counts for
10 papers
On the contribution of the Hall term in small-scale magnetohydrodynamic dynamo
Arijit Halder, Supratik Banerjee, Anando G. Chatterjee +1
A detailed study of small-scale Hall magnetohydrodynamic dynamo has been performed both analytically and numerically. Assuming the magnetic field and the current to be separate fie…
Scaling of a Fast Fourier Transform and a Pseudo-spectral Fluid Solver up to 196608 cores
Anando G. Chatterjee, Mahendra K. Verma, Abhishek Kumar +3
In this paper we present scaling results of a FFT library, FFTK, and a pseudospectral code, Tarang, on grid resolutions up to grid using 65536 cores of Blue Gene/P and 196…
Large eddy simulations using renormalized viscosity
Sumit Vashishtha, Anando Chatterjee, Abhishek Kumar +1
In this paper, we have used renormalized viscosity for performing large eddy simulations (LES) of decaying homogeneous and isotropic turbulence inside a periodic cube on coarse gri…
Dynamic anisotropy in MHD turbulence induced by mean magnetic field
Sita Sundar, Mahendra K. Verma, Alexandros Alexakis +1
In this paper, we study the development of anisotropy in strong MHD turbulence in the presence of a large scale magnetic field B 0 by analyzing the results of direct numerical simu…
Energy Spectra and Fluxes in Dissipation Range of Turbulent and Laminar Flows
Mahendra K. Verma, Abhishek Kumar, Praveen Kumar +4
Two well-known turbulence models that describe the energy spectrum in the inertial and dissipative ranges simultaneously are by Pao~(1965) and Pope~(2000). In this paper, we comput…
Dynamics of large-scale quantities in Rayleigh-Bénard convection
Ambrish Pandey, Abhishek Kumar, Anando G. Chatterjee +1
In this paper we estimate the relative strengths of various terms of the Rayleigh-Bénard equations. Based on these estimates and scaling analysis, we derive a general formula for t…
Similarities between 2D and 3D convection for large Prandtl number
Ambrish Pandey, Mahendra K. Verma, Anando G. Chatterjee +1
Using direct numerical simulations of Rayleigh-Bénard convection (RBC), we perform a comparative study of the spectra and fluxes of energy and entropy, and the scaling of large-sca…
Energy Spectrum of Buoyancy-Driven Turbulence
Abhishek Kumar, Anando G. Chatterjee, Mahendra K. Verma
Using high-resolution direct numerical simulation and arguments based on the kinetic energy flux , we demonstrate that for stably stratified flows, the kinetic energy spectrum…
Energy spectrum of Buoyancy-driven Flows
Abhishek Kumar, Anando G. Chatterjee, Mahendra K. Verma
Using high-resolution direct numerical simulation and arguments based on the kinetic energy flux , we demonstrate that for stably stratified flows, the kinetic energy spectrum…
Benchmarking and scaling studies of a pseudospectral code Tarang for turbulence simulations
Mahendra K. Verma, Anando Chaterjee, Supriyo Paul +4
Tarang is a general-purpose pseudospectral parallel code for simulating flows involving fluids, magnetohydrodynamics, and Rayleigh-Bénard convection in turbulence and instability r…