HEAT CONVECTION IN A VERTICAL AND IN A TILTED CHANNEL

摘要

We study heat convection in a channel between two chambers, the hot one being lower than the cold one. The channel can be vertical or tilted. We perform both thermal and velocity measurements, through a Particle Image Velocimetry technique. Preliminary measurements show the influence of the tilt on the velocity and temperature transverse profiles. We discuss them in terms of turbulent diffusivities approximations.