What is the Reynolds number of a golf ball?
What is the Reynolds number of a golf ball?
The Reynolds number is around 1e5. Comparison of the turbulent wake behind a dimpled golf ball (top), which originates from a turbulent boundary layer separation, and a smooth ball (bottom), which originates from a laminar boundary layer separation.
What is the dimple pattern on a golf ball?
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.
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.
How do you find the Reynolds number on a ball?
Reynolds number is dimen- sionless and is given by Re = ρDv/η where ρ is the air density, D is the ball diameter, v is the ball speed and η = 1.8 × 10−5 Poise is the viscosity of air.
Are more dimples on a golf ball better?
More dimples being on a golf ball are not necessarily better. The number of dimples that are on a golf ball is less important than the dimensions of the dimples themselves. Too many dimples mean more drag, and too few dimples mean an unpredictable flight trajectory.
What is the optimal number of 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.
How many dimples are on a professional golf ball?
Generally, the number is anywhere between 300 and 500 dimples. American golf balls, more often than not, come with 336 dimples. While how many dimples on a British golf ball, they have 330 dimples. As for the highest number of dimples, that would be Ultra 500 Series Golf Balls (500 dimples).
How many dimples does a Callaway golf ball have?
332 dimples
Typically though, there are 300-500 dimples on any branded golf ball. For example, TaylorMade has 322 while Callaway has 332 dimples. Then there’s Titleist Pro V1, one of the best beginner golf balls, with 352 dimples. So it’s unmistakable that dimples differ on golf balls from one brand to another.
How do you use Reynolds number?
The inertial forces are defined as density, velocity and length, while the viscous force is, unsurprisingly, the dynamic viscosity of the substance. By multiplying the three inertial forces together and dividing them by the viscous force, the Reynolds number can be arrived at.
How many dimples are on a golf ball?
For one manufacturer, the answer to how many dimples on a golf ball was a whopping 1,070, which happens to be the record for the most dimples on a golf ball. Why Do Golf Balls Have Dimples? Golf manufacturers don’t put dimples on golf balls because it looks good.
Who invented the dimple on golf balls?
In the early 1900s, another inventor found that indentations in golf balls performed far better than raised protrusions. In 1905, an English manufacturer named William Taylor registered a patent for a golf ball dimple design. Before long, all golf balls featured dimples that would be more or less recognizable today.
What is the effect of golf ball dimples aerodynamics?
The effect of golf ball dimples aerodynamics means that golfers are able to hit the ball significantly farther, and in a much more-controlled fashion, than they were able to previous to the creation of the dimpled golf ball.
What is the dimples of a Bridgestone Golf Ball?
Golf Ball Dimples Chart Golf Ball Model Dimples Bridgestone Tour B330 330 Bridgestone TOUR B XS 330 Bridgestone TOUR B X 330 Bridgestone TOUR B RX Golf Ball 338
