Boundary layers in turbulent Rayleigh-B\'enard convection in air
Fluid Dynamics
2012-09-28 v1
Abstract
The boundary layer flow in a Rayleigh-B\'enard convection cell of rectangular shape has been visualized in this fluid dynamics video. The experiment has been undertaken in air at a Rayleigh number and a Prandtl number . Various sequences captured at selected positions of the heating plate show that the boundary layer is a very transient flow region characterized by coherent structures that permanently evolve. It becomes fully turbulent in the areas where the large-scale circulation impinge or leave the bottom plate.
Keywords
Cite
@article{arxiv.1209.6201,
title = {Boundary layers in turbulent Rayleigh-B\'enard convection in air},
author = {Ronald du Puits and Johannes Rilk and Christian Resagk and André Thess},
journal= {arXiv preprint arXiv:1209.6201},
year = {2012}
}
Comments
two pages, one full size video, one reduced size video