Dynamic Flow Behavior with the Modified Shape of Yarn Package

초록

Knitted fabrics are very stylish and flexible, which consists of the various yarns. To make some knitted fabrics, therefore, the levelness of yarn is one of the important properties. It is well known that the fluid dynamic behavior in the yarn dyeing machine greatly affects the levelness of the yarn package dyeing. Although a flow model should include the terms of package density, permeability and so on, we simplify the model without the consideration of them, to optimize the angle alpha(α) of the yarn package. Because the focus of this study is just to understand the effect of angle alpha(α) on the dynamic flow behavior flow behavior in yarn package dyeing.