Fluid Mechanics Flashcards
1
Q
What is fluid mechanics?
A
The study of an object or human body that travels through a gas or liquid
2
Q
What are two examples of fluid forces?
A
Drag
Lift
3
Q
Drag definition
A
A force that acts in the opposition to motion (something that slows something down)
4
Q
What are two types of drag?
A
Surface and form
5
Q
Surface drag and sporting example
A
- friction between a surface of an object and a fluid environment
- swimmers shave whole body to help streamlining
6
Q
Form drag and sporting example
A
- the impact that drag has on an object
- swimmer streamlining or cyclist
7
Q
What’s the difference between surface and form drag?
A
Surface drag PULLS against the surface whereas form drag HITS to slow you down
8
Q
3 Factors that reduce and increase drag
A
- the velocity of the moving body
- the area of the moving body
- the shape and surface of the moving body
