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why do dimples make golf balls go further

by Dagmar Heaney PhD Published 2 years ago Updated 2 years ago
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Dimples on a golf ball create a thin turbulent boundary layer of air that clings to the ball's surface. This allows the smoothly flowing air to follow the ball's surface a little farther around the back side of the ball, thereby decreasing the size of the wake.Sep 19, 2005

Full Answer

What is the reason behind golf balls being dimpled?

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Is less dimples on a golf ball better or worse?

The number of dimples that are on a golf ball may seem random, and it may even seem inconsequential, but the truth is that the dimples on a golf ball are very intentionally designed and placed, and the number of dimples on a golf ball is carefully determined. More dimples being on a golf ball are not necessarily better.

How do they put dimples on a golf ball?

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  • Titleist. As arguably the best golf ball out there, this brand continuously comes out with high quality balls.
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  • Callaway. If you don’t notice Callaway right away, then I’m a bit surprised. ...
  • Srixon. ...
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  • Nike. ...
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Why do dimples on a golf ball allow it to travel farther?

Dimples on a golf ball create a thin turbulent boundary layer of air that clings to the ball's surface. This allows the smoothly flowing air to follow the ball's surface a little farther around the back side of the ball, thereby decreasing the size of the wake.

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Is it better to have more or less dimples on a golf ball?

The number of golf ball dimples is less important than the shape and depth of the dimples. The number of dimples can affect drag, so it is important to not have too many dimples. Between 330 and 400 dimples is the optimum number. More dimples mean more focussed control over the ball trajectory.

Do dimples on a golf ball make it go faster?

Adding dimples to golf balls creates a thin layer of air that sticks to the surface, minimizing the drag behind the ball and increasing the lift of the ball—allowing it to go higher and move forward faster.

Why are there 336 dimples on a golf ball?

Essentially, golfers would have little hope controlling a smooth golf ball. When dimples are added to a golf ball, it creates a tiny layer of air around the golf ball that significantly cuts down drag. This forces the air to flow over a larger portion of the ball, which results in a much smoother ball flight.

Do golf ball dimples affect putting?

With no significant associations identified with human participants, dimple error is unlikely to have any implications on putting performance. This is also apparent with side spin where only 20% of variance was accountable for one putter-ball combination.

How many dimples are on a Titleist Pro V1 golf ball?

388 dimpleNew Spherically-tiled Tetrahedral Dimple Designs– featuring a 388 dimple layout for Pro V1, and 348 for Pro V1x – are optimized to each model to maximize distance and flight consistency. Pro V1 maintains its penetrating trajectory while Pro V1x will fly higher than the prior generation.

Why is a golf hole 4.25 inches?

Four-and-a-quarter inches in diameter. R&A ADOPTS 4.25-INCH HOLE SIZE That first hole-cutting implement utilized a cutting tool that was, you guessed it, 4.25 inches in diameter. The folks running the R&A apparently liked that size and so adopted it in their rules for 1891.

Which golf ball has the most dimples?

As for the highest number of dimples, that would be Ultra 500 Series Golf Balls (500 dimples). Then you also have Nike and Maxfli golf balls with +400 dimples.

How many dimples are on a professional golf ball?

On American golf balls, there are usually 336 dimples, while there are 330 on a British ball. However these numbers can vary widely. Golf balls have anywhere from 300-500 dimples. Golf ball manufacturers will manipulate the number, shape, size, and even edge angles to optimize ball flight and trajectory.

How many dimples does a Callaway SuperSoft golf ball have?

Both the Callaway SuperSoft and Pinnacle Soft have 332 dimples. The SuperSoft's have a hexagonal dimple design. The Pinnacle soft's have an icosahedral shape. Both balls amplify your distance.

How do dimples reduce drag?

Golf ball dimples reduce drag by creating a turbulent boundary layer flow around the ball. The boundary layer is defined as a thin layer of fluid dragged by the ball. By creating this turbulent boundary layer, the separation point decreases.

Are golf balls perfectly balanced?

You might not know this, but all golf balls are not balanced properly on the inside. Many balls have a COG that is imperfect, and ANY imperfection of the COG can cause your ball to go off line. These imperfections can cause not only your putts to go off line but your drives as well.

What is the purpose of putting dimples on the surface of materials?

The smooth sphere separates the air rapidly, creating a large pressure differential between the front and rear of the ball. This creates a large wake that creates lots of drag, forcing the ball to descend more quickly. In contrast, the dimpled ball delays the separation of the air, reducing the size of the wake.

Why does a dimpled golf ball travel further than a smooth golf ball?

Dimpled golf balls travel further than smooth golf balls is because the dimples on a golf ball create turbulence in the boundary layer. This actually helps reduce drag and increase lift.

Do non dimpled golf balls go farther?

After watching Brian hit a series of 8-iron shots with both types of ball, our students easily concluded that a golf ball without dimples did not go nearly as far as a ball with dimples, and flew with a different trajectory.

How the dimpled design of golf ball surfaces allows greater distance to be achieved than by striking a smooth ball?

In a dimpled ball, however, the airflow changes drastically. Therefore, a much smaller wake is created behind the ball, which reduces drag, i.e. the backward pull on the ball. That’s why a dimpled ball is able to travel much faster and cover a greater distance than a smooth golf ball.

What makes a golf ball travel farther?

As a golf ball travels through the air, wind resistance creates drag, which slows the ball down. The dimples on a golf ball reduce the drag of the air making it possible for the ball to go faster and farther.

Why are there 336 dimples on a golf ball?

So, any ball with number of dimples less than 300 or more than 500 is not optimised for performance. So, most manufacturers have around 350-450 dimples on their golf balls. 336 dimples is believed to be a totally optimised number.

Why are golf ball dimples different sizes?

The dimples work to break the air around the ball in flight, and have two key characteristics that are measured: Lift and Drag. The ideal dimple design is a combination balancing the lift and drag of the ball. We vary the diameters, shapes, total coverage, edge angles to control these two key variables.

How many dimples does a Pro V1 have?

The new Pro V1 has 388 dimples, and the new Pro V1x has 348 (both in a tetrahedral pattern), marking the first time the dimple counts have changed since 2011. Dimple patterns, however, are far more than simply the number of them.

Why do golf balls have dimples?

Very simply stated, if a golf ball were smooth, the air would flow quickly over the top and create quite a bit of turbulence behind the ball.

What is a dimple on a golf ball?

Like many other great inventions in history, dimples on a golf ball were discovered accidentally. Throughout history, golf balls took on many different designs. At one point, they were even constructed with feathers inside them. As golf grew, people started to realize that a golf ball with cuts and scratches in it would fly further ...

When did golf balls start to have bumps?

Golf balls began to be produced with raised bumps on them until the very early 1900s.

Do golf balls perform well?

Although golf ball design and features will vary within the acceptable limits, most golf balls will perform equally well over an extended period of time. That being said, choosing the right golf ball for you can be related to feel, swing speed, and personal preference.

Why do golf balls have dimples?

Dimples do make a golf ball fly farther. Without dimples, golf balls do not spin well and have too much drag while in flight to travel a long distance.

What does it mean when a golf ball has too many dimples?

Too many dimples mean more drag, and too few dimples mean an unpredictable flight trajectory. The number of dimples is important, but it is vital to not have too many. How many dimples a golf ball has is specifically determined by the gold ball manufacturer, with the intent of affecting certain characteristics of the ball while in flight.

Why do dimples affect the distance the ball can go?

The reason why dimples affect the distance the ball can go is because the dimples on the surface of the ball cause the ball to spin in the air. This backspin motion creates a low-pressure zone behind and underneath the ball while in flight, effectively pushing the ball upwards, which translates to longer air-time.

How many dimples does a 1070 have?

The Dimple 1070 has 414 large dimples and 656 small dimples, making it a non-regulation golf ball. The Mizuno RB 566 is a regulation ball that has 566 micro-dimples, which are more dimples than any other regulation golf ball.

What affects the spin of a golf ball?

The spin of the ball is affected by the depth of the dimples. Shallower dimples mean more spin. The way the dimples on a golf ball are shaped and laid out is more important than the actual number of dimples on the ball.

Why are dimples important in golf?

The dimples on a golf ball are crucial. They determine all of the major aerodynamic properties of a golf ball, which ultimately determines how well the ball performs during a game. More dimples on a golf ball do not necessarily make the ball better, but rather the way the balls are laid out and how they are designed.

How does the number of dimples affect the drag of the golf ball?

This means that if you prefer a golf ball to move a little more slowly through the air to compensate for a specific swing or hit style , then the highest number of dimples you can find will be the way to go.

From Observation to Mathematical Model

As a child, I occasionally would walk around a nearby golf course with my family on rainy days; the only times when no golfers would dare to play. Our own game was to find lost balls from previous, unfortunate players. The person who found the most balls would win.

The Drag Crisis Observation

Throughout history, the flows around many different shapes have been studied by scientists. For example, vortex streets are generated by the flow around cylinders. Although a sphere does not generate this type of large alternating flow structure, the flow characteristics can also be linked to the Reynolds number.

The Reason for the Drag Crisis

First of all, let’s recall that the drag of an object is caused by two sources:

Modeling the Aerodynamic Forces of Golf Balls

Now we understand why golf balls have dimples in the first place. Let’s remember that the drag is lower and therefore the ball can go further. To find out how much further the ball can go, we first need to compute its trajectory.

Finding the Optimal Launch Angle

The effect of the dimples on a golf ball should now be clear: They make the ball go further. However, in practical terms, this does not say much about how I should hit the ball.

Conclusion

In today’s blog post, we answered a seemingly simple question about golf ball dimples, which has to do with the behavior of the turbulent boundary layer over a sphere at a specific range of Reynolds numbers. This also outlines a classical process in engineering.

Try It Yourself

Try computing the trajectory of a golf ball in COMSOL Multiphysics. Click the button below to access the model file featured in this blog post:

Why do golf balls have dimples?

Golf ball dimples are used on all golf balls because a dimpled golf ball has less air resistance than a smooth ball of the same size and weight. This means less drag force and the ball going farther.

Who invented the golf ball?

Finally, in 1908, an Englishman, William Taylor, is credited with first manufacturing a golf ball having a dimpled surface. In time that design took over and golf ball dimples are present on any golf ball you see in use today.

What happens if the leading part of the surface is rough?

If, however, the leading part of the surface is rough, then the entire boundary layer will be turbulent. Now the most interesting fact of all: A turbulent boundary layer will remain attached to the surface farther around to the back of the ball than a laminar boundary layer will.

What causes air resistance in a ball?

For flow around a ball (or a ball moving through a fluid), the air resistance will be due to both friction drag and pressure drag. There will be a boundary layer (and the resulting friction drag) on the front part of the ball.

Is frictional drag greater with turbulent boundary layers than with laminar boundary layers?

The frictional drag is greater with a turbulent boundary layer than with a laminar boundary layer, but the frictional drag is much smaller than the pressure drag for flow around a sphere, so the pressure drag effects are predominant. So, you see, fluid mechanics can explain why a dimpled golf ball goes farther!

The Science Behind Golf Ball Dimples

Did you know that, when you impact a golf ball with your club, this contact takes no more than 1/2000 of a second?

What Happens If You Take The Dimples Away?

While they might look like simple pieces of equipment to the untrained eye, golf balls are manufactured in such a way that they are perfect for their use.

Conclusion

Golf balls need to have dimples in order to improve their flight, so they do not slice or hook.

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