71 citations · 149 across the 4 of their papers we have counts for
4 papers
The relative roles of divergence and velocity slip in the stability of plane channel flow
K. C. Sahu, A. Sameen, R. Govindarajan
Wall slip and wall divergence are known to have large and opposing effects on the stability of flow in a two-dimensional channel. While divergence hugely destabilises, slip dramati…
The effect of wall heating on instability of channel flow
A. Sameen, Rama Govindarajan
A comprehensive study of the effect of wall heating or cooling on the linear, transient and secondary growth of instability in channel flow is conducted. The effect of viscosity st…
Preventing transition to turbulence: a viscosity stratification does not always help
Vijayakumar Chikkadi, A. Sameen, Rama Govindarajan
In channel flows a step on the route to turbulence is the formation of streaks, often due to algebraic growth of disturbances. While a variation of viscosity in the gradient direct…
Stabilization of Hydrodynamic Flows by Small Viscosity Variations
Rama Govindarajan, Victor S. L'vov, Itamar Procaccia
Motivated by the large effect of turbulent drag reduction by minute concentrations of polymers we study the effects of a weakly space-dependent viscosity on the stability of hydrod…