49 citations · 104 across the 12 of their papers we have counts for
5 papers · 1 filter
Dynamo transition in a five-mode helical model
Rohit Kumar, Pankaj Wahi
We construct a five-mode helical dynamo model containing three velocity and two magnetic modes and solve it analytically. This model exhibits dynamo transition via supercritical pi…
Dynamics of zero-Prandtl number convection near the onset
Pinaki Pal, Supriyo Paul, Pankaj Wahi +1
In this paper we present various convective states of zero-Prandtl number Rayleigh-Bénard convection using direct numerical simulations (DNS) and a 27-mode low-dimensional model co…
Chaotic dynamics in two-dimensional Rayleigh-Bénard convection
Supriyo Paul, Mahendra K. Verma, Pankaj Wahi +2
We investigate the origin of various convective patterns using bifurcation diagrams that are constructed using direct numerical simulations. We perform two-dimensional pseudospectr…
Patterns and bifurcations in low-Prandtl number Rayleigh-Benard convection
Pankaj Kumar Mishra, Pankaj Wahi, Mahendra K. Verma
We present a detailed bifurcation structure and associated flow patterns for low-Prandtl number () Rayleigh-Bénard convection near its onset. We use b…
Bifurcations and chaos in large Prandtl-number Rayleigh-Bénard Convection
Supriyo Paul, Pankaj Wahi, Mahendra K. Verma
A low-dimensional model of large Prandtl-number () Rayleigh Bénard convection is constructed using some of the important modes of pseudospectral direct numerical simulations. A…