This paper deals with a numerical study of the natural
convection flow in an asymmetrically heated vertical plane
channel at Ra*=4.5.106. The objective of this study is then to
highlight the influence of the heat source position at the heated
wall on the behavior of both the return flow and the surface heat
transfer. In order to neglect radiation, only the convective aspects
related to natural convection are studied by carrying out
simulations in water. Numerical simulations were performed for
two-dimensional, laminar and unsteady flow using the finite
volume approach. Based on the study of several heating
distributions at wall, the influence of the incident thermal source
location and of the dissipated power on the downward return
flow is highlighted and on the heat transfer at wall as well.
Papers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016.