| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device capable of accurately measuring the fluid resistance of swimwear fabric and the like.SOLUTION: In the fluid resistance measurement method of the present invention, first, fabric or material is attached to the outer surface of a cylindrical part of a cylindrical substrate (1) of a density higher than the water density. Then, (A) the cylindrical substrate (1) is dropped into a static water (12) in a water tank (11) in a state in which the substrate (1) is erected, and the time when the tip of the cylindrical substrate (1) travels a predetermined drop distance is measured. Alternatively, (B) the cylindrical substrate (1) is dropped from an air medium into a static water (12) in a state in which the substrate (1) is erected, and the drowning period since the tip of the cylindrical substrate (1) comes into contact with the water surface until the rear end enters water is measured. Then, the time or drowning period is used as an evaluation value of the fluid resistance of the surface of the fabric or material. |
