Aerodynamics:
Of or having a shape which reduces the drag from air moving past.
Example:
Some technologies that depend on aerodynamics are cars, bicycle racing helmets, wind turbines, and golf balls. Aerodynamics is the way air moves around things. Since air is all around us, there are many examples of aerodynamic technology other than for aircraft. Look at golf balls for example. Golf balls have their unique shape with hundreds of dimples on them to improve their aerodynamics and create more lift. Due to this design, golf balls can travel farther after being hit.
Principle:
There are three basic forces to be considered in aerodynamics: thrust, which moves an airoplane forward; drag, which holds it back; and lift, which keeps it airborne.
Importance:
The main purpose for aerodynamics is to reduce drag and wind noise, minimizing noise emission and preventing unwanted lift forces.
