Abstract
Thermally-developing and fully-developed turbulent flow forced convection in cylindrical packed beds heated at constant wall temperatures are numerically studied. The macroscopic momentum equation considers the effects of turbulence and hydrodynamic dispersion in addition to Darcy-Brinkman-Forchheimer flow resistances, while the effects of thermal radiation, turbulence and thermal dispersion are taken into account in the energy equation. It is found that the coupled hydrodynamic dispersion and turbulence term in the momentum equation affects the pressure gradients in packed beds and that the agreement between the theoretical results of temperature profiles and heat transfer characteristics accounting for thermal radiation and the experimental ones is excellent
