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2 cards from this section. Quick, good the night before a test.
What is a major head loss?
Think about where the most resistance occurs in a pipe.
How do you define minor losses?
Consider what happens when the flow direction changes.
What is the primary cause of major head losses?
Consider where most resistance occurs.
True or False: Minor losses only occur in straight pipes.
Think about what happens at junctions or bends.
A pipeline with a diameter of 0.5m is 4000m long with a friction factor of 0.02. Calculate the major head loss using the Darcy-Weisbach equation.
Remember to compute area and velocity from discharge first.
A valve in a pipeline causes a minor loss coefficient of K = 3. If the flow velocity is 3 m/s, calculate the minor head loss.
You’ll need to know gravitational acceleration for this calculation.
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