Bernoulli's principle and its application(let us know how aircraft gets lifted up)

Bernoulli's principle and its application(let us know how aircraft gets lifted up)

Posted by Unknown on Friday 29 November 2013 0

Bernoulli's principle states that for an inviscid flow, an increase in the speed of the fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.(source wikipedia.org)
or simply
Bernoulli's principle states that "when velocity increases, pressure goes down and pressure will increases when velocity gets decreased.

First application Bernoulli's principle :

 Many of us are wondering about how could a bulky body gets raised from the ground and fly in the air .In fact this is easy to explain and we are only trying to make you to know only its take off. But we hope this will try to aware a flight of a plane. This is according to Bernoulli's principle,it just states that "when velocity increases, pressure goes down and viceversa. Before the plane gets takeoff, it would run much faster,since velocity is needed and its very important too. Due to its particular body shape of the plane ,the air flowing upper part of the plane also travel much faster. Comparitively, this is much lower at its lower part. According to the theorem, the pressure decreases on the upper part and beneath the velocity of air is very low and pressure gets increased upto great level. As we know that, the pressure will move from higher concentration to lower concentration. So the pressure moves from the lower part of the plane to the upper part, this pushes the plane upwards. The wings of the plane helps this upward lift. The pressure pushes the wings upward which results the rise of a plane.

Another application Bernoulli’s theorem :

We can see some colored lines on the platform near to the Track. Crossing  red line and beyond there while train passing through the platform which will make accident. The thing is that the when train passing through the track ,the velocity of Air in that region is high but pressure is low. But  when a man standing at the red line the velocity of air in that region is comparatively law and the pressure is in high level,so the pressure gets moved from higher concentration to lower concentration results the body to hit on the moving train.

learn more about Bernoullis principle and seee more applications related to this principle.

http://en.wikipedia.org/wiki/Bernoulli's_principle