Relationship between fluid behavior on the surface of low resistance wear and fabric stretch

Abstract

The purpose of this study is to clarify the effect of changes in surface shape due to fabric stretch of low resistance wear on fluid behavior. Three-dimensional surface texture measurement was performed to clarify the geometrical changes of the fabric, and Particle Image Velocimetry measurement was performed to clarify the fluid behavior. As a result, the relationship between fluid behavior and fabric elongation differed depending on the fabric features. In the non-urethane fabric, surface roughness increased and critical velocity decreased as the fabric stretched. On the other hand, in the urethane / dimple (outer / inner) fabrics, critical velocity was lower than the others at a fabric ratio of 95 % (fabric ratio = fabric length / fabric length when stretched).