Bernoullis' principle and Fluid in Motion Flashcards
fluid particles move along the same smooth path.
The path is called a streamline
Laminar
fluid particles flow irregularly causing changes in velocity.
They form eddy currents.
Turbulent
amount of fluid passing through a pipe may be expressed in terms of a quantity
flow rate
volume of fluid passing by a given location through an area during a period of time
flow rate
T OR F
The relationship tells us that flow rate is directly proportional to both the average speed of the fluid and the cross-sectional area of a river, pipe, or other
true
The larger the conduit, the greater its cross-sectional area.
true
Continuity Equation
A1v1 = A2v2
the fluid is incompressible, the same amount of fluid must flow past any point in the tube in a given time to ensure continuity of flow
true
speed increases when cross-sectional area decreases, and speed decreases when cross-sectional area increases.
true
bernoullis’ equation
P + ½ ρv2 + ρgh = constant
the faster-moving air above the wing exerts less pressure than the slower-moving air below the wing.
true
Increase in pressure exerts an upward force
lift
Lift - Increase in pressure exerts an upward force
true
– force that opposes or restricts motion in a fluid
drag
