Wednesday, March 21, 2007

3/21/07

1.Bernoulli effect:
The phenomenon of falling pressure in a fluid as the velocity of the fluid stream increases. The Bernoulli effect accounts for the lift generated by the airfoil shape of an airplane wing.

Bernoulli effect:

The image “http://www.mrfizzix.com/indyracing/bernoullie.gif” cannot be displayed, because it contains errors.
2.
Yaw-
an angle, to the right or left, determined by the direction of motion of an aircraft or spacecraft and its vertical and longitudinal plane of symmetry.
Examples:
Computer animation of an airliner in which the nose  moves side to side in response to changing the rudder angle.
The image “http://www.grc.nasa.gov/WWW/K-12/airplane/Images/yaw.gif” cannot be displayed, because it contains errors.
Pitch-
to deviate from a stable flight attitude by oscillations of the longitudinal axis in a vertical plane about the center of gravity.
Examples:

Computer animation of an airliner in which the nose  moves up and down in response to changing the elevator angle.

The image “http://www.grc.nasa.gov/WWW/K-12/airplane/Images/pitch.gif” cannot be displayed, because it contains errors.
Roll-
a single, complete rotation of an airplane about the axis of the fuselage with little loss of altitude or change of direction.
Examples:

Computer animation of an airliner in which the wings  moves up and down in response to changing the aileron angle.
The image “http://www.grc.nasa.gov/WWW/K-12/airplane/Images/roll.gif” cannot be displayed, because it contains errors.
Dihedral-
the angle at which the right and left wings or the halves of any other horizontal surface of an airplane or the like are inclined upward or downward.
Examples:
http://www.mindspring.com/~cramskill/dihedral.gif
Static-
pertaining to the science of weight and its mechanical effects,from mod.

Aerodynamic-
Designed to reduce or minimize the drag caused by air as an object moves though it or by wind that strikes and flows around an object. The wings and bodies of airplanes have an aerodynamic shape.
Examples:

http://quest.arc.nasa.gov/aero/teachers/images/yaws.gif
This is the formula for lift:
L=C1xP over 2x V to the second power x A (formula)