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Transcript of Aerospace Engineer
Aerospace engineers design aircraft, spacecraft, satellites, and missiles. In addition, they test prototypes to make sure that they function according to design.
Other jobs they can do are:
Film Set Model Designer
Aerospace engineering is divided into two major overlapping branches. The first branch is aeronautical, and the second is astronautical.
States that, as the speed of a moving fluid increases, the pressure within the fluid will decrease. This principle is demonstrated by the airfoil shape of the wings.
static pressure + dynamic pressure = total pressure
The Coanda Effect is the tendency of a fluid to follow a concave surface even if it curves away from the direction of the fluid flow. This allows the air flowing over plane's wing or over a rocket's fin to stay near the surface of the vehicle. This prevents turbulence and allows Bernoulli's Principle to take effect.
Aeronautics is the study of the science of flight within the earth's atmosphere. There are four basic areas that aeronautical engineers must understand.
Materials and Structures
Stability and Control
How airplanes work?
Airplane wings are shaped to make air move faster over the top of the wing. When air moves faster, the pressure of the air decreases. So the pressure on the top of the wing is less than the pressure on the bottom of wing. The difference in pressure creates a force on the wing that lifts the wing up in the air.
Center of Mass
The center of mass of a rocket or plane is the point on the rocket or plane from which all of the mass theoretically acts. This means that as the plane flies all of its rotation occurs about this point.
Center of Pressure
The center of pressure of a rocket or plane is the point from which all aerodynamic drag theoretically acts. As the vehicle flies, this point is pushed by aerodynamic drag to be behind the point of rotation, the center of gravity.
Astronautical deals with spacecraft that operate outside the earth's atmosphere. People who work in this field must be well educated about the solar system. They will have to create space vehicles that can survive in extreme conditions. Four basic principals they will need to understand are:
To make more effective use or their fuel, rockets and jet aircraft try to expel their fuel at the highest velocity they can. This imparts greater force on the fuel, and thus a greater equal and opposite force on the vehicle. The efficiency of rockets is measured in specific impulse.