Aerodynamics and Continuity Equation

Flashcards covering the continuity equation and the factors influencing aerodynamic drag as discussed in the lecture transcript.

Continuity Equation

A principle stating that if the cross-sectional area of a tube is increasing, the speed of a subsonic, incompressible flow inside the tube is decreasing.

Aerodynamic Drag

The force on a body placed in an airstream which depends, among other factors, on the airstream velocity.

Subsonic, Incompressible Flow

Flow conditions where velocity and cross-sectional area are inversely related within a tube based on the continuity equation.

Airstream Velocity

The specific factor mentioned in the notes that aerodynamic drag of a body depends on.

Cross-sectional Area

A dimension of a tube that, when increased, results in a decrease in flow speed for subsonic, incompressible flows.

Specific Mass of the Body

A factor that the aerodynamic drag of a body placed in an airstream does not depend on.

Weight of the Body

A characteristic of a body that is not a factor determining its aerodynamic drag in a certain airstream.

Center of gravity ($C.G.$) location

The position within a body that, according to the notes, is not a factor upon which aerodynamic drag depends.

Flow Speed

The property of a subsonic, incompressible flow that decreases when the cross-sectional area of a tube increases.

Subsonic Flow

Flow with a speed less than the speed of sound, which decreases in velocity as it passes through an increasing cross-sectional area in a tube.