TY - JOUR
TI - Numerical analysis of combined natural convection-internal heat generation source-surface radiation
AU - Hamimid Sabar
AU - Guellal Messaoud
JN - Thermal Science
PY - 2016
VL - 20
IS - 6
SP - 1879
EP - 1889
PT - Article
AB - Numerical study of combined laminar natural convection and surface radiation  with internal heat generation is presented in this paper and computations are  performed for an air-filled square cavity whose four walls have the same  emissivity. Finite volume method through the concepts of staggered grid and  SIMPLER algorithm has been applied, and the view factors are determined by  analytical formula. A power scheme is also used in approximating  advection-diffusion terms. Representative results illustrating the effects of  emissivity and the internal heat generation on the streamlines and  temperature contours within the enclosure are reported. In addition, obtained  results for local and average convective and radiative Nusselt, for various  parametric conditions, show that internal heat generation modifies  significantly the flow and temperature fields.