AERONAUTICS

AERONAUTICS

Aeronautics

Introduction

Contemporary research in the field of aerodynamics has resulted in the development of high performance technologies involving mechanical, aerospace and space technologies allowing the engineers to make some highly technical advances in aircrafts, helicopters, propeller propellant and motor vehicles.

Aerodynamics is the part of fluid mechanics that studies the gases in motion and forces or reactions to which are subjected the bodies that are within it. A self-importance of aerodynamics must be added the value of his contribution to aeronautics. In accordance with the Mach number or speed of a mobile relative to air, aerodynamics is divided in subsonic and supersonic as that number is greater or less than unity (CLANCY, 1975, pp.31-34).

Aerodynamics is the study of the laws of motion of rigid bodies in gases, primarily the air. Thus, it is a branch of mechanics of fluids and gases, especially of fluid dynamics. Basically, it comes in aerodynamics to fly, but also to other Moving against the wind resistance, such as driving a plane. Furthermore, to include Aerodynamics also all air and gas flows, for example, buildings or in tubes. Specifically, it is referring to the object (the plane), (the movement of the Flight wind) and the air (SIMONS, 1999, pp.7-11.).

Aerodynamics is a sub-field of fluid mechanics (including fluid dynamics) and includes several special interest areas that are specialized in different areas:

Airfoil theory: The movement of a wing in dense gas

Aerospace Aerodynamics: This area deals with the aerodynamics of flight and re-entry of spacecraft

Supersonic aerodynamics, missile, moving faster than sound (Mach 1 to Mach 3)

Hypersonic aerodynamics, missile moving at very high speeds in dense gases (Mach 3 +)

Boundary-layer theory: It is the tight layer viewed at close range to the body around.

Discussion

Aerodynamics features of Being 777

The Boeing 777 or 777 or commonly called Triple seven is an airliner wide body, long-haul jet and built by the company Boeing. It is the largest jet in the world, with a capacity of 300 passengers and a range varying from 5235 nautical miles (9 695-17 370 km) depending on model. The "Triple seven , , "its distinctive characteristics are the largest diameter turbofan engines of an airliner in service, six wheels on each main landing gear and fuselage of circular ending blade-shaped. Developed in partnership with eight major airlines, the 777 was designed to replace older wide-body models and provide a buffer between the 767 and the 747. First Boeing commercial aircraft flight controls power, the 777 has controls computer-aided. This is also the first commercial airliner designed entirely on computer.

Its characteristic features are the large nacelles under the wings (which host the most massive and powerful turbofan engines ever built), the six wheels on each of two trucks and a large main fuselage of circular cross section. The 777 was the first airliner built by Boeing with controls fly-by-wire (i.e., mediated by computer and electronic servo controls), and was also the first commercial airliner designed entirely on the computer, using a software CAD called ...