Sunday, April 25, 2021, 00:05
Bádminton is a little -known racket sport in Spain, even though it has become Olympic in Barcelona, one of the oldest and most popular sports in the world and, currently, a world reference like Spanish. It is said that he was born in ancient Greece and in China. However, the current version was imported by the English of India and extended to the entire planet. The regulation was made in 1887 and the first world championship was held in 1977. To the first place, Europeans and the American dominated, but soon the domain moved to Southeast -Asia, although today a Spanish series between number 1 and 3 of the world ranking. The international federation integrates 160 countries and around 200 million people are practiced in the world. It is not played with a ball, but with the so -called steering wheel or pen, a semi -gum surrounded by 16 springs (the skirt). There are two types of flyers, those of natural springs that continue to prefer professional and synthetic players. It is a very complete sport that, as we will see, requires strength, agility and speed.
The steering wheel can reach initial speeds of up to 330 km/h; There is no ball sport where this speed is reached. The possibility of playing with this initial speed is due to the fact that it has a very small ballistic coefficient, that is, an extremely high resistance and, consequently, the greater delay in the flight of all sports in the air. The speed is lowered almost 10 times to 36 km/h, with only 0.6 seconds. As can be intuitive, the aerodynamic characteristics of the flyers of those of all other racket sports differ. Moreover, they generate a complex process despite being almost parabolic. Aerodynamic experimental studies of the various flyers enable players to see the flight train and thus regulate their strokes. For example, how you can hit the steering wheel to descend at the end of the court almost vertically.
But on theoretical level there are still fringes to clarify the mechanism, for example, with which high resistance during the flight acquires. The experiments are conducted in the wind tunnels. The aerodynamic forces are measured in the tunnel and the streams are visualized to examine the relationship between the flowing forces and the behavior of the rotating streams, such as a swirl, around the steering wheel, depending on the wind speed, the diameter of the skirt and the kinematic viscosity (viscosity in motion). The effects of the deformation of the skirt and the behavior of the steering wheel with and without rotation are also studied. Moreover, there is the effect of the air flow that passes through the slots that are at the base of the feather skirt. This current causes, within the skirt, a low -pressure area that causes a pressure difference between Canyon and living from the front of the steering wheel. All these effects influence the complex movement of the steering wheel and determine the type of stroke that must be given.
