Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Numerical and experimental analyses of heat transfer by natural convection on flat inclined plates
Submission Author:
João Gabriel Gomes de Oliveira , DF
Co-Authors:
João Gabriel Gomes de Oliveira, Eugênia Cornils, Taygoara Oliveira, Antonio Brasil Junior
Presenter: João Gabriel Gomes de Oliveira
doi://10.26678/ABCM.COBEM2017.COB17-1955
Abstract
The steady-state natural convection heat transfer from flat inclined plates for laminar flow is numerically investigated. The numerical modeling approach is validated by an experimental study in a natural convection chamber and by comparing the inclined heated flat plate results with the available correlations. The convective heat transfer coefficient of the heated plate is obtained from finite volume computational fluid dynamics simulations. The 2D and 3D domains were considered in order to evaluate the contributions of the three-dimensional effects. For the inclination angles 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55° and 60° from the horizontal position, the extent of validity of the obtained vertical correlation is investigated by modifying the Rayleigh number with the sine of the inclination angle. The results of convective heat transfer coefficient are represented in the relation of average Nusselt and Rayleigh numbers. An appropriate numerical model approach was developed. The results of the new model agree well with the experiment and available correlations.
Keywords
Natural Convection, flat inclined plate, convective heat transfer coefficient, CFD simulations
