Bernoulli Principle Research Paper

The Bernoulli Principle was founded by a Swiss mathematician and physicist named Daniel Bernoulli. The Bernoulli principle is a physics law that states "within a horizontal flow of fluid points of higher fluid speed will have less pressure than points of slower fluid speed." In simple terms, a fluid with high velocity has a lower pressure than a fluid with a lower velocity. For example, in a horizontal pipe that changes in diameter, a section of the pipe where water flows fastest there is less pressure compared to another section in the pipe where the water flows slower the pressure would be higher. This law can be applied to both liquids such as water and gases such as air.

The most common and greatest example of the application of this principle is the airplane. The airplane is able to be maintain in the air due to the differences in the pressure on the surfaces of the wings. There are four forces that act on an aircraft that allows it to fly. The four forces are lift, weight, drag and thrust. The weight or gravity is the force that pushes down vertically on the aircraft. In order to the get the aircraft in air there needs to be an opposite force acting against the gravity. This force is known as the lift or pressure. The weight of the object determines

For example, Newton 's First Law states an object at rest remains at rest and an object in motion remains in motion unless acted on by an external force. This applies to flight because if lift and weight are neglected, drag and thrust are the only forces left. Thrust is applied to balance out the force produced by the drag and therefore the aircraft remains at a constant speed. Without the thrust, drag would be the only force acting on the aircraft pushing it back down, but with thrust it allows the aircraft to move forward. This is where Newton 's law applies, the object is forced to change its motion (drag) due to another external force