The role of porosity in filtration. Part X: Deposition of compressible cakes on external radial surfaces



The theory of deposition of compressible, particulate beds on cyclindrical surfaces is developed for both constant-pressure and constant-rate filtration. Radial flow is encountered in tubular filters and in both filtering and sedimenting centrifuges. It differs mathematically from filtration on planar surfaces in the manner in which the frictional drag balance on the particle structure is coupled with Darcy's equation.