How is flow of air used in transportation?
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Basically the flow of air is directed over a curved shape that creates different pressures above and below the shape. This shape is called an airfoil.
In air transport, the actual mechanism generating lift on an airfoil is Newton's Third Law of Motion - it's often mistaken for Bernoulli's Principle. Although Bernoulli's Principle can be used to analyse the airflow around an airfoil.
An airfoil is always angled so that most of the air is forced under the wing and actually pushes it up due to downwash.
In cars and lorries, the shape of the vehicle is such that is reduces the drag co-efficient of the shape and allows air to move around the vehicle in such a way as to reduce friction and improve fuel efficiency. Some cars have inverted airfoils fitted to provide a downforce (as opposed to the upforce required for flight) and this makes the tyres grip the road more. This is mostly observed on race cars.
In air transport, the actual mechanism generating lift on an airfoil is Newton's Third Law of Motion - it's often mistaken for Bernoulli's Principle. Although Bernoulli's Principle can be used to analyse the airflow around an airfoil.
An airfoil is always angled so that most of the air is forced under the wing and actually pushes it up due to downwash.
In cars and lorries, the shape of the vehicle is such that is reduces the drag co-efficient of the shape and allows air to move around the vehicle in such a way as to reduce friction and improve fuel efficiency. Some cars have inverted airfoils fitted to provide a downforce (as opposed to the upforce required for flight) and this makes the tyres grip the road more. This is mostly observed on race cars.
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