What is the use of a bump and bump on the surface of a golf ball? Please try to explain it in terms

It's a complex physics problem, and in general it's about making the ball's trajectory more regular, reducing the effects of wind and air density, and the more pits, the more stable the ball, so the better the ball, the more pits.

Why do golf balls design regular concave points on the surface? Shouldn't a smooth surface fly farther with less friction? Let's uncover the science behind it!

The uneven surface can cause air to flow around the ball, and if it doesn't, a vortex will form behind the ball, which acts as if it were dragging the ball backwards, slowing it down. As a result, balls with uneven surfaces fly faster.

Grooves on the surface isolate the air, such as the bulb rotates in the direction of the clockwise bridge, then the grooves at the top of the ball will accelerate the surrounding air (as they rotate with the air flow), while the grooves at the bottom of the ball will slow down, if the grooves on the bottom of the ball are the opposite, they slow down. Bernoulli's law states that when air is accelerated, its pressure decreases. As a result, the pressure on the surface at the top of the ball decreases and the pressure on the bottom increases, which is called a lob.

If you can spin the ball in the opposite direction like a tennis player does, then the pressure at the top of the ball increases and the pressure at the bottom decreases, which will make the ball fall significantly.

When we put a golf ball in the air, the golf ball will also exert a force, and then the golf ball flying in the air will be surrounded by a layer of air. At this time, it is actually easier to peel off from the air than a smooth ball, and at this time, a pressure ball is formed, and the pressure difference between the front and back of the ball is formed, so the ball speed drops and then falls to the ground due to the pressure difference, and the ball cannot fly far away. Then, compared with the ball with holes, the air resistance is greater at this time, and it is not easy to break away from the air layer, and it is easy to fly farther.

In addition, the ball has a trajectory in the air, which will be affected by its own gravity and the resistance of the incoming air. At this point each ball acquires a backward rotational force, which is closely related to these indentations, as if forming a thick carrier underneath the ball. When a golf ball is hit, it will fly at high speed, and the ball may fall off, and there is a force here that affects the amount of resistance.

Then the effect of the hole on the ball is to reduce the change of direction and let the ball fly farther.

Have you ever played golf?

Relatively smooth surface fluids are more likely to stick to the surface rather than be pushed away by rough surfaces, which reduces the air pressure difference between the front and back, thus reducing drag. The root cause is unknown. It is not a responsibility to guess that the large low pressure area behind it may be turned into many small low pressure areas all over the surface, so that what was originally a large backward force becomes a small force in all directions.

Because humans have also done experiments, the distance of a ball with a smooth surface is only half that of an uneven golf ball compared to a golf ball, so the golf ball should be made with an uneven surface.

Because this allows the golf ball to fly farther after being hit, it can reduce air resistance, and if it is smooth, the ball will not fly far.

When a golf ball is in the air, it is subject to wind resistance, which makes it impossible to play too far. The uneven surface can reduce the wind resistance and make the ball fly farther.

It increases the resistance of the golf ball during the movement, and the uneven points on its surface can be applied according to the direction of the player, determining the height and angle of the ball, making it easier to score goals.

Because the relatively smooth surface fluid is more likely to stick to the surface than to be pushed away by the rough surface, the air pressure difference between the front and back is reduced, and thus the drag is reduced.

Because of the wind resistance, the air resistance of the spherical surface is reduced. In detail, there are two main forces when an object moves in the air, one is the friction between the surface of the object and the air flow, and the other is the differential pressure resistance of the air pressure difference between the front and rear ends of the object. The function of the small pit on the spherical surface is to hold the surface air tightly to the spherical surface, so that the rear maneuver air resistance is reduced, which can make the golf fly farther and faster.

Have you ever played golf?