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Golf ball aerodynamics and physics that are used today to design golf ball performance characteristics are far more technical than I could possibly understand. The basics of golf ball flight however will always be the same and is not all that complicated to understand. The golf ball will always be round, it will always have some kind of dimples or bumps on it, it will be launched with spin and it will fly through the air.
Dimple design can impact flight characteristics, including spin rate.
Here is what happens from impact on: Once the ball is impacted, it is deformed somewhat. When it leaves the clubface in a deformed state, it is different aerodynamically until it regains its perfectly round shape. Once it is round, moving in a forward direction and spinning backward (back spin), it assumes its normal aerodynamic properties. As air smashes into the front of the ball, the dimples trap air into them and drag more of the air up and over the top of the ball than what passes underneath the ball. This creates a low-pressure area on top of the ball. Low pressure on top of something (like an airplane wing) creates lift. As the ball is spinning through the air at a certain forward speed, a low-pressure area is formed behind the ball that introduces a drag component. While all this is going on, the earth’s center of gravity is pulling down on the ball because it has a weight component.
The weight of the ball is pulling it to earth; the lift, drag and air around the ball create friction that wants to slow down its spin rate and also its forward speed. All three of these components of lift, drag and weight coupled with the balls spin rate and initial velocity, create the trajectory or shape of the balls flight. You should see now that the golf balls dimple design can change the drag, lift and overall flight characteristics including the spin rate. Try out different balls and find out which one works best for you.
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