Airplanes

The Free essays given on our site were donated by anonymous users and should not be viewed as samples of our custom writing service. You are welcome to use them to inspire yourself for writing your own term paper. If you need a custom term paper related to the subject of Physics or Airplanes, you can hire a professional writer here in just a few clicks.
Research: Airplanes are an efficient way of traveling to far places. Airplanes are amazing if you know what and how the air keeps the plane airborne. There are three components of flight: aerodynamics, the Bernoulli principal and supersonic flight. Some other things about flight are the four forces, lift, drag, weight, and thrust. One of the basic things you need to know about airplanes is that the places where the plane can balance on one point called the center of gravity. The tail on the plane is needed to balance the pitching movement. First of all, aerodynamics plays a major role on many things, especially in airplanes. Aerodynamics is the reaction of the air on the specially shaped wing that lifts an airplane off the ground. Also, aerodynamics is the study of gases in motion. The term aerodynamics comes from the Greeks meaning air power. Isaac Newton bases aerodynamics on the physics theorem. People who experiment with aerodynamics are called aerodynamicist. Their basic tool is the wind tunnel. A professor of engineering, Osborne Reynolds, conducted many experiments with paper airplanes and regular airplanes and found out Viscosity (thickness) affects the way fluids behave. All fluids have some viscosity. As a fluid flows over a surface, the fluid molecules closest to the surface cling microscopic roughness of the surface. As you move away from the surface, there is a small transition distance where the fluid's viscosity limits the change in speed of the adjacent molecules, until at a certain distances the fluid is at full speed. (Paper airplane aerodynamics www.geocities.com/capecanaveral/1817/paene/html) Osborne invented a number that was devised which gives the importance of viscosity in fluid flow. It's called the Reynold's number. Reynold's number =9340 for air so you'd take 9340x velocity relative to surface (mph) x length over surface fluid has traveled feet. This determines how influential the viscosity is. Secondly, Swiss mathematician and physicist, Daniel Bernoulli, created Bernoulli's principle in 1738. It stated the concept that as the speed of a moving fluid increases, the pressure within the fluid decreases. An increase in the fluid's speed must be matched by a decrease in pressure. The mathematical theorem for the Bernoulli affect is p + ? p V2. One source said, "the principle also applies to the spinning of a baseball" (Simons, 1989, pg. 23) The rotation causes an additional velocity component to be sent in the direction of rotation. Because of all that, the total velocity around the ball is higher on one side then the other. This is an example of how Bernoulli's principle works. Next, supersonic flight includes speeds from mach one to five: above five are considered hypersonic. The bell X-1 rocket plane first achieved supersonic flight in 1947. "Many attempts had been made before that but when the plane ran against the sound barrier the pilot often lost control when the shock waves built up against the surface" (Compton's 1994). Mach one is considered traveling below the speed of sound (subsonic). Mach two is traveling twice the speed of sound (supersonic). All aircraft's that are traveling at supersonic or hypersonic speed create a shock wave that represents a big change in the air pressure. The shock is in reality a cone shape (a mach cone). The mach cone at mach 1 is more of a hill but as the mach numbers increase, the cone gets pushed back to more of a mountain. As the wave gets closer to the wing, the drag increases dramatically. When you are at subsonic mach numbers, the drag is increased as a result of small wing span or low aspect ratio. "Low aspect ratio is the ratio of span to mean chord of an airfoil" (Reithmaier, 1995). A typical supersonic airplane gives off two main shock waves: bow shock and tail shock. Next, there are four forces of flight; lift, weight, drag, and thrust. Drag is the air resistance to forward motion. Thrus

Our inspirational collection of essays and research papers is available for free to our registered users

Related Essays on Physics

Albert Einstein

Albert Einstein Albert Einstein was a German-born American physicist best known for being the creator of the special and general theories of relativity and for this hypothesis concerning the par...

The Rocket Science of Tennis and Its Racket

Its Not Rocket Science, Its Racket Science Remember warm Sunday afternoons when everyone loaded into the car with the intention of spending some family time together? For me, being one of eight ch...

Fibre Optics

Page 1/3 F i b r e O p t i c s Preface Fibre optics is an emerging form of technology that uses minute fibres of glass or plastic to transmit light. The light source and method of delivery can ...

Make and toke your own BONGS

********************************* * MAKE AND TOKE YOUR OWN BONGS! * ********************************* BY TONY MARX ==> A guide for everyone on the art of making bongs, from the simple to the sub...

Genius Overlooked

Genius Overlooked Jess Brock Algebra III Summer School Mr. Palumbo July 24, 1999 Stephen Hawking is, all in all, one of the greatest thinkers of the twentieth centur...

albert einstein

Alex Thapar Hist 315, Professor Oriji Albert Einstein Of all the scientists to emerge from the twentieth centuries...

www.1cs.com.ua/services/general-cleaning-of-office/

https://steroid-pharm.com

уборка киев