5.4 CFD-DEM Coupled Simulation and Development
319
Fig. 5.64 Non-dimensional temperature field at non-dimensional temperature drop τ = 0.5 and
Nusselt number N u = 30 with different initial temperatures of the packed pebble bed (sectional
view at half width; here N u = constant is to retain the same convection and compare radiation):
a T p,0 = 600 K, T in = 300 K; b T p,0 = 900 K, T in = 600 K; c T p,0 = 1500 K, T in = 1200 K; d
T p,0 = 1800 K, T in = 1500 K
319
Fig. 5.64 Non-dimensional temperature field at non-dimensional temperature drop τ = 0.5 and
Nusselt number N u = 30 with different initial temperatures of the packed pebble bed (sectional
view at half width; here N u = constant is to retain the same convection and compare radiation):
a T p,0 = 600 K, T in = 300 K; b T p,0 = 900 K, T in = 600 K; c T p,0 = 1500 K, T in = 1200 K; d
T p,0 = 1800 K, T in = 1500 K