Fluid Mechanics Flashcards
1
Q
Define air resistance
A
The force that opposes the direction of motion of a body through the air
2
Q
Define drag
A
The force that opposes the direction of motion of a body through the water
3
Q
What factors affect the magnitude of air resistance and drag on a body
A
• velocity
• frontal cross sectional area
• streamlining, aerofoil shape
• surface characteristics (smoothness)
4
Q
Define streamlining
A
The creation of smooth air flow around an aerodynamic shape
5
Q
Define aerofoil
A
A streamlined shape with a curved upper surface and flat lower surface designed to give an additional lift force to a body
