This thesis presents a combined experimental and numerical investigation of Rayleigh-
Bénard convection without and with a background rotation. Rayleigh-Bénard convection, the
buoyancy-driven flow induced by temperature gradients, is relevant to a wide variety of both
natural phenomena (of which motions in the atmosphere and in the oceans are only the
most straightforward examples) and technological applications (like melting of pure metals
or flows in turbomachinery). Despite the numerous works on the subject, different aspects of …

Naturally flows have been the scope of the scientific research for centuries, Rayleigh-Bénard
convection being one of the leading. Many researchers have considered the flow patterns,
boundary conditions, various cavities, nanofluids, theoretically, numerically, experimentally.
The flow was investigated in atmosphere and in nano fluids, in air, water, molten metals, non-
Newtonian fluids. Almost all research focuses on 2 or 3-dimensional analysis of flow in
laterally unlimited enclosures, as parallel plates or coaxial cylinders. In technical practice …