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Golf Balls

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Submitted By deez26
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GOLF BALLS

The design and aerodynamics of a golf ball is very interesting. I've always wondered why a golf ball has all those little dimples on it (I just thought it was for the look) but never took the time to read about it until now. About 600 years ago someone realized that an older, rougher ball performed better than a new smoother ball, thus the evolution of dimples. In the last 150 years, research and tests have been conducted to see if the performance of the golf ball could be enhanced. Research found through wind tunnels and an indoor test range that, on a smooth ball the airflow separates from the ball at 80 degrees from the direction of flight (more to the front of the ball). This in turn creates a large turbulent flow (low pressure area) at the rear of the ball creating unwanted drag. The same tests were conducted on golf balls with dimples, showing that the dimples create surface turbulence, which increases the energy to the airflow along the surface of the ball. This makes the airflow separate at 110 degrees from the direction of flight (more to the rear of the ball), thus in turn creating a smaller turbulent flow (low pressure area) at the rear of the ball creating less drag.

With all the research that has been conducted over the last 150 years experts have come to the conclusion that there is only about ± 4 yards to gain on the maximum range of a golf ball. So next they will have to turn to research on the clubs.

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