Why Golf Balls Have Dimples?
Do you know that a smooth golf ball without dimples will only travel 50% distance of what a golf ball with dimples does?
The reason for this phenomenon is that when air flows around a golf ball, it creates small air turbulence on the dimples, which sucks the air toward the golf ball. Consequently, the air separates later from dimpled balls, ultimately reducing air turbulence behind the ball and air drag.
The picture above depicts a simulation of air flow around a golf ball.
Therefore, it is not surprising to find that the depth, arrangement, and shape of the dimples will all affect the ball’s flight.
Many golf brands boast of their special dimple patterns and shapes. For example, Callaway HX golf balls use a hexagonal dimple shape, while Titleist features 318 dimples arranged in a triangular dipyramid shape.
Interestingly, in the past, golf balls did not originally have dimples. It was discovered by accident that used golf balls with scratches and cuts helped the golf ball fly further and straighter. It was only then that golfers began playing with golf balls featuring a dimple pattern.
The picture below shows the evolution of golf ball.
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