Number of dimplesPressure coefficientSpark tracing methodCFDIt 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 ...
<div p-id="A-0001" num="0001">The present invention is a golf ball that has a coefficient of restitution at 143 feet per second that is greater than 0.8015, and an USGA initial velocity less than 255.
As a passive flow control technique, the utilization of dimples is firstly inspired by nature [8]. One of the best-known applications of dimples is the golf ball, which was first studied by Bearman and Harvey [9] in 1976. Based on experiments in a wind tunnel, they depicted the drag ...
A manufacturer of golf balls once did a test to find the ideal number of dimples to put on golf balls. It turned out that balls with 432 dimples went farther than the rest. I have read elsewhere that the Kali-Yuga time cycle of the Eastern religions, is also 432,000 years (in some...
A direct comparison of features of flow fields was made to a smooth sphere model. Particular attention was paid to the effect that the golf ball dimples have on the development of lateral force and wake structures. In the subcritical regime, the lateral force varies irregularly in time for ...
A direct comparison of features of flow fields was made to a smooth sphere model. Particular attention was paid to the effect that the golf ball dimples have on the development of lateral force and wake structures. In the subcritical regime, the lateral force varies irregularly in time for ...
of flow separation.Dimple structures are successfully employed in golf balls to reduce the pressure drag and provide longer flight.The study of aerodynamics of golf ball showed that the dimples created localized turbulence which resulted in delayed flow separation.Changes in flow characteristics of NACA...
However, the surface roughness could result in the drag crisis of golf ball occurring at a lower Reynolds number in the supercritical regime compared with the smooth sphere. This is because the flow becomes instable when it passes the dimples at the supercritical Reynolds number and could ...