The floating zone (FZ) method is one of the growth techniques used to grow single crystal materials. FZ growth is achieved in a containerless environment (without a crucible) by the movement of a molten zone of a solid rod, which forms a free-standing liquid bridge between two solid sections. However, the surface tension along the free surface of the molten zone varies due to temperature and co...

This work presents results of numerical simulation the instability vertical liquid film flow at moderate Reynolds numbers in framework partial differential equation state free surface film. Equation coefficients include different physicochemical factors such as tension parameter and Marangoni parameter. Python scripts are used for computation wave characteristics, regions films state. Computati...

Abstract The Kuramoto–Velarde equation describes slow space-time variations of disturbances at interfaces, diffusion–reaction fronts and plasma instability fronts. It also Benard–Marangoni cells that occur when there is large surface tension on the interface in a microgravity environment. Under appropriate assumption initial data, time T , coefficients such equation, we prove well-posedness cla...

An experimental study of time-dependent Bénard-Marangoni convection in small aspect ratio containers and high Prandtl number fluids is presented. Two similar systems with the same aspect ratio, depth, and type of fluid are compared: one with adiabatic lateral boundaries and the other with open boundaries. In spite of the fact that very different plan forms and flows appear, both systems exhibit...

We here show how evaporation/condensation processes lead to efficient heat spreading along a liquid/gas interface, thereby damping thermal fluctuations and hindering thermocapillary flows. This mechanism acts as an effective thermal conductivity of the gas phase, which is shown to diverge when the latter is made of pure vapor. Our simple (fitting-parameter-free) theory nicely agrees with measur...