71 citations · 672 across the 48 of their papers we have counts for
5 papers · 1 filter
Is there solid-on-solid contact in a sphere-wall collision in a viscous fluid?
Sumit Kumar Birwa, G. Rajalakshmi, Rama Govindarajan +1
We study experimentally the collision between a sphere falling through a viscous fluid, and a solid plate below. It is known that there is a well-defined threshold Stokes number ab…
Algebraic disturbances and their consequences in rotating channel flow transition
Sharath Jose, Vishnu Kuzhimparampil, Benoît Pier +1
It is now established that subcritical mechanisms play a crucial role in the transition to turbulence of non-rotating plane shear flows. The role of these mechanisms in rotating ch…
Linear stability analysis and direct numerical simulation of two layer channel flow
Kirti Chandra Sahu, Rama Govindarajan
We study the stability of two-fluid flow through a plane channel at Reynolds numbers of a hundred to a thousand in the linear and nonlinear regimes. The two fluids have the same de…
Attraction-induced jamming in the flow of foam through a channel
Karthik Menon, Rama Govindarajan, Shubha Tewari
We study the flow of a pressure-driven foam through a straight channel using numerical simulations, and examine the effects of a tuneable attractive potential between bubbles. This…
Relaxation of a highly deformed elastic filament at a fluid interface
S Ganga Prasath, Joel Marthelot, Rama Govindarajan +1
We perform experiments to investigate the relaxation of a highly deformed elastic filament at a liquid-air interface. The dynamics for filaments of differing length, diameter and e…