Several sequential packing models are applied to numerically construct
packed beds of identical spheres in right circular cylindrical contai
ners. The fixed packed beds are assembled on a base layer so that a ne
wly added sphere is always placed at a vertical location that is stabl
e under gravity. The newly added sphere may be positioned so that it i
s in contact with two spheres and the container wall (wall spheres) or
three other spheres in the interior of the packing (inner spheres). T
he particular procedure by which wall spheres and inner spheres are ad
ded to the packing is determined by a given model. The sequential mode
ls calculate the center coordinates of each newly added sphere. The ce
nter coordinates are used to determine the overall void fraction and t
he radial void fraction in cylindrical containers with D/d greater tha
n or equal to 3 and are compared with experimental data.