Large eddy simulation of transition of free convection flow over an inclined upward facing heated plate

Alzwayi, A.S. and Paul, M.C. (2013) Large eddy simulation of transition of free convection flow over an inclined upward facing heated plate. In: 13th UK Heat Transfer Conference, London, UK, 2-3 Sep 2013,

Abstract

Transition of free convection flow of air over a heated surface is investigated numerically by using a Large Eddy Simulation (LES) method. Particularly, we focus on how the transition is affected by the inclination angle of the heated plate facing upward. Special attention is paid to the development of the thermal boundary layer and its process of transition from the laminar to turbulent stages. The results show that the transition occurs early when the plate is moved from its vertical position due to the rapid growth of both the velocity and thermal boundary layers. As a consequence, the critical Grashof number drops. Moreover, effects of the inclination of the plate on the velocity fluctuations are also presented and the predicted results show very good agreement with various experimental data available in the literature.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Paul, Professor Manosh
• Authors: Alzwayi, A.S., and Paul, M.C.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy