Hydrodynamics: Flow Characters Flashcards
1
Q
Laminar
A
Streamlined, recttilinear, unstable
2
Q
Turbulent
A
non-linear, circular, stable
3
Q
Re
A
length*velocity/Kinematic constant
Ratio of inertial factors to viscous factors
4
Q
High Re
A
Turbulent flow, inertial forces dominate
5
Q
Low Re
A
Laminar flow, viscous forces dominate
6
Q
Shift from laminar to turbulent
A
Occurs around ~3000 Re
7
Q
Boundary layer
A
layer of reduced velocity that is immediatly adjacent to surface of an object
Reduces speed of organism, increase drag
8
Q
Transition Point
A
Occurs at ~1/3 max body depth
9
Q
Seperation point
A
where fluid at body surface begins to move forward
