How Do Airplanes Fly?
How do airplanes fly?
Reasons For Airplanes Flying
To answer this question, we have to look into our atmosphere. It’s full of air, isn’t it? Aeroplanes utilize this presence of air in the atmosphere to fly. The branch of Physics that deals with this is known as aerodynamics. The specially designed shape of the aeroplane is the primary answer to this question. This special design enables the aeroplane to get the necessary thrust from the atmosphere to rise, glide, and stay in the air. If we take a closer look, we can understand that the shape is similar to that of an eagle. The wings of the aeroplane are designed in a special way such that the upper part is curved and the lower part is somewhat flat. It is at this point that Bernoulli’s principle comes into action. Bernoulli’s principle states that the pressure exerted by a moving fluid is inversely proportional to the speed of the fluid. In other words, fluid pressure decreases as fluid speed increases and vice versa. This also applies to gas. The movement of air across the wings creates an upward force that is greater than the gravitational force exerted by the Earth. The faster that air moves through a space, the lower the air pressure; the slower it moves, the higher the pressure. The air moving over the top of the wings is faster than the air going underneath. This leads to the formation of low pressure on the top of the wings. As usual, air moves from a high-pressure region to a low-pressure region, and this creates an upward thrust, enabling the aeroplane to overcome the gravitational force exerted by the earth.
– Written by Edutuber Mallu
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