Πλοήγηση ανά Συγγραφέα "Sefiane, K."
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Linear and nonlinear stability of hydrothermal waves in planar liquid layers driven by thermocapillarity
Saenz, P. J.; Valluri, P.; Sefiane, K.; Karapetsas, G.; Matar, O. K. (2013)A shallow planar layer of liquid bounded from above by gas is set into motion via the thermocapillary effect resulting from a thermal gradient applied along its interface. Depending on the physical properties of the liquid ... -
Non-isothermal bubble rise: non-monotonic dependence of surface tension on temperature
Tripathi, M. K.; Sahu, K. C.; Karapetsas, G.; Sefiane, K.; Matar, O. K. (2015)We study the motion of a bubble driven by buoyancy and thermocapillarity in a tube with a non-uniformly heated walls, containing a so-called 'self-rewetting fluid'; the surface tension of the latter exhibits a parabolic ... -
On phase change in Marangoni-driven flows and its effects on the hydrothermal-wave instabilities
Saenz, P. J.; Valluri, P.; Sefiane, K.; Karapetsas, G.; Matar, O. K. (2014)This paper investigates the effects of phase change on the stability of a laterally heated liquid layer for the first time. The interface is open to the atmosphere and vapor diffusion is the rate-limiting mechanism for ... -
Thermocapillary-Driven Motion of a Sessile Drop: Effect of Non-Monotonic Dependence of Surface Tension on Temperature
Karapetsas, G.; Sahu, K. C.; Sefiane, K.; Matar, O. K. (2014)We study the thermocapillary-driven spreading of a droplet on a nonuniformly heated substrate for fluids associated with a non-monotonic dependence of the surface tension on temperature. We use lubrication theory to derive ...