 Selection of ball flights that differently-dimpled balls might encourage or cure
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It's common knowledge among golfers that dimples reduce drag, allowing the ball to fly farther than if it had a smooth surface. But there are so many dimple pattern combinations that it's nearly impossible to know which gives us maximum distance and most control.
It seems the university professors are now delving into what they claim is 'taking some of the trial and error out of the equation,' as well as unveiling 'more efficient air flow ideas.'
And the Rules of Golf won't stand in their way because there are no Rules concerned with dimples.
While a golf ball cannot weigh more than 1.620 ounces, it must pass through a 1.680-inch ring gauge in fewer than 25 of 100 randomly selected positions at a room temperature from 71.6 to 75.2 degrees. Furthermore, it must be spherically symmetrical, have an initial velocity and its combined carry and roll must not exceed precise limits. Also the ball must be tested using equipment specified by the R&A or USGA.
But in terms of size and number of dimples there are no specifications in the Rules, which is where the University boffins are intrigued and determined to press on with their research to find the perfect design.
“We have a reasonable understanding of the effect of the dimples and the way they change local air-flow distribution around the ball,” Kyle Squires, a professor of mechanical engineering at Arizona State University told the New York Times this week. “We're now beginning to do some simulations where the ball rotates so that we can begin to understand what the ball does in real life.
"The design of the dimples also affects the direction a ball takes so it's conceivable that we could design dimples that would lower the risk of a hook or a slice,” he says.
“There are an infinite number of patterns, and we can't test all of them,” he said. “But we'll certainly be able to come up with a better pattern. Why would we expect that the best pattern is on the shelf right now?”