23 citations · 44 across the 8 of their papers we have counts for
7 papers · 1 filter
Flux scaling in Rayleigh Bénard convection: a local boundary layer analysis
Prafulla P. Shevkar, Baburaj A. Puthenveettil
We study the effect of shear due to the large scale flow (LSF) on the heat flux in Rayleigh B'enard convection for a range of near-plate Rayleigh numbers $8\times 10^7 \leq Ra_w \l…
Dynamics of collapse of free-surface bubbles: effects of gravity and viscosity
Sangeeth Krishnan, Baburaj A. Puthenveettil, Emil J. Hopfinger
The rupture of the thin film at the top of a bubble floating at a liquid-gas interface leads to the axisymmetric collapse of the bubble cavity. We present scaling laws for such a c…
A criterion to detect line plumes from velocity fields in turbulent convection
Vipin Koothur, Baburaj A. Puthenveettil
We present a simple, new criterion to extract line plumes from the velocity fields, without using the temperature field, in a horizontal plane close to the plate in turbulent conve…
Horizontal velocity field near the hot plate in turbulent natural convection
Vipin Koothur, Baburaj A Puthenveettil
We study the velocity field in a horizontal (x-y) plane 1.5 mm above the hot plate in turbulent natural convection using PIV at a Rayleigh number Raw=106 and Prandtl number Pr=5.2.…
Dynamics of line plumes on horizontal surfaces in turbulent convection
G. S. Gunasegarane, Baburaj A. Puthenveettil
We study the dynamics of line plumes on the bottom plate in turbulent convection over six decades of Rayleigh number and two decades of Prandtl number $(0.7<P…
Shape and motion of drops in the inertial regime
Vijaya Senthil Kumar K., Baburaj A. Puthenveettil
In this paper, we report experimental results on the shape and motion of a mercury droplet, placed in a horizontally rotating cylinder in the rpm range 8-93, so that the Reynolds n…
Flux scaling and plume structure in high Ra - high Sc turbulent convection
Baburaj A. Puthenveettil, Jaywant H. Arakeri
The arrangement of brine above water across a micro porous permeable membrane is used to study high Rayleigh Number() high Schmidt number(650)turbulent convection…