競技用低抵抗ウエア表面の流体挙動と生地伸長の関係

抄録

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).