Mixing and Flow in Glass Tanks

Mixing influences that are effective during the flow of glass through continuous tanks are classified. Common experimental techniques for evaluating these influences are compared. A multi cell model is used to describe flow behavior in the absence of miring from transfer flow. Laminar transfer flow in a glass tank is evaluated by considering flow through an open channel with a vertical viscosity gradient. Recently published results describing flow through a container glass tank at relatively high pulls are best explained by secondary flows modifying the mixing effects from the variable velocity of laminar transfer flow through the tank.