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4 cards from this section. Quick, good the night before a test.
What is a stress tensor used for in fluid mechanics?
Think about how we measure forces in different directions.
Define gauge pressure.
Consider what happens to pressure at sea level.
How many components does a stress tensor have in three dimensions?
Think about both normal and shear directions.
True or False: Gauge pressure accounts for atmospheric pressure.
What is the reference pressure in gauge pressure?
In a cylindrical tank, water exerts a normal stress at the base due to its weight. If the water column is 10m high and has an area of 2m², calculate the normal stress acting at the base. Use the density of water as 1000 kg/m³.
Consider how density and height work together to determine pressure.
Given a fluid flowing through a pipe where the velocity is halved at the outlet compared to the inlet and the input pressure is known, how would the momentum flux change?
Think about how momentum is calculated in flowing fluids.
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