127 citations · 775 across the 18 of their papers we have counts for
4 papers · 1 filter
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…
Transient flows and reorientations of large-scale convection in a cubic cell
Andrei Vasiliev, Peter Frick, Abhishek Kumar +3
The transient processes of a turbulent large-scale convective circulation (LSC) in a cubic cell are investigated using large-eddy simulations for Rayleigh number $\Ray=10^8$ and Pr…
Statistical features of rapidly rotating decaying turbulence: enstrophy and energy spectra, and coherent structures
Manohar K. Sharma, Abhishek Kumar, Mahendra K. Verma +1
In this paper we investigate the properties of rapidly rotating decaying turbulence using numerical simulations and phenomenological modelling. We find that as the turbulent flow e…
Complexity of viscous dissipation in turbulent thermal convection
Shashwat Bhattacharya, Ambrish Pandey, Abhishek Kumar +1
Using direct numerical simulations of turbulent thermal convection for Rayleigh number () between and and unit Prandtl number, we derive scaling relation…