71 citations · 381 across the 30 of their papers we have counts for
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Revisiting Bolgiano-Obukhov scaling for moderately stably stratified turbulence
Shadab Alam, Anirban Guha, Mahendra K. Verma
According to the celebrated Bolgiano--Obukhov \citep{Bolgiano_1959,Obukhov_1959} phenomenology for moderately stably stratified turbulence, the energy spectrum in the inertial rang…
On the energy spectrum of rapidly rotating forced turbulence
Manohar K. Sharma, Mahendra K. Verma, Sagar Chakraborty
In this paper, we investigate the statistical features of the fully developed, forced, rapidly rotating, {turbulent} system using numerical simulations, and model {the} energy {spe…
Large eddy simulations of turbulent thermal convection using renormalized viscosity and thermal diffusivity
Sumit Vashishtha, Mahendra K. Verma
In this paper we employ renormalized viscosity and thermal diffusivity to construct a subgrid-scale model for large eddy simulation (LES) of turbulent thermal convection. For LES,…
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…