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2 cards from this section. Quick, good the night before a test.
Explain the concept of mass conservation.
Think about balance in a jar.
What is a control volume?
It can be visualized as a box or container.
What is the formula for mass conservation in a control volume?
Remember this is the balance of mass.
True or False: Incompressible flow indicates changes in density.
Think about liquids, are they compressible?
A water jet strikes a stationary flat plate at a velocity of 15 m/s. Calculate the force on the plate if the area of the jet impact is 0.2 m².
Calculate flow rate before substituting.
Consider a control volume with a moving boundary at 5 m/s that encounters a water jet at 20 m/s. Find the thrust if the jet area is 0.5 m².
Use inflow velocity reduction by the moving boundary.
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