A REVIEW of PARTICLE BEHAVIOR IN TUBE FLOW: APPLICATIONS to ASEPTIC PROCESSING1

The design of holding tubes for continuous sterilization of foods containing large particulates depends heavily on knowledge of pipe flow behavior of food suspensions. Although directly related literature is limited, a considerable body of potentially useful literature is available on solid‐liquid flows. This critical review discusses literature on solid‐liquid flow in tubes, including capsule flow, effects on bends, radial migration phenomena, particle‐particle interactions, modeling studies and other topics which may have a bearing on particle velocities in holding tubes.