1612 ゴルフボールの飛翔特性に及ぼすディンプルの影響

概要

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It is known that the flying characteristics of the golf ball are influenced by flying speed, rotational frequencies and the number of dimples, etc. In this study, the pressure acting on a test spheres is measured using a pressure transducer, and the flow visualization around the test sphere is performed applying the spark tracing method by changing the number of dimples and Reynolds number, The number of dimples is changed from 0 (smooth) to 504,and the diameter of the sphere is 42.6mm. Reynolds number is changed from 4.23×(10)^5 in a uniform air flow. A further, a three-dimensional aerodynamic characteristic of the golf ball is clarified by using the CFD (LES model). From the results, the separation point, pressure distribution and the flow pattern of the wake flow became clear.
一般社団法人日本機械学会の論文
2003-08-05