Numerical Analysis of Pneumatic Capsule Pipeline System by the Method of Characteristics : Continuous Loading under a Constant Cycle

Abstract

The numerical analysis on the motion of the capsules are surveyed for the condition that the same capsules of 20kg in mass are pneumatically transported at a constant loading time interval in a horizontal and straight pipeline of 0.2m I.D. and 500m length under a constant inlet pressure. The results show that the mean capsule velocity is decreased a decreased loading cycle and that when there is air leakage through the clearance between the capsule and the pipe wall the capsule velocity is also decreased but the transport becomes smooth.