20.2 - Derivations of Energy Losses
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Practice Questions
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Define energy losses in a fluid system.
💡 Hint: Think about how fluids interact with surfaces.
What are the two types of flow mentioned?
💡 Hint: Consider how the velocity affects flow behavior.
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Interactive Quizzes
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What is the primary cause of energy losses in fluid systems?
💡 Hint: Consider what slows down the fluid.
True or False: Turbulent flow has less energy losses than laminar flow.
💡 Hint: Think about the orderly nature of laminar flow.
1 more question available
Challenge Problems
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A fluid flows through a pipe with a sudden contraction from diameter 0.2m to 0.1m. Using Bernoulli's equation, calculate the expected pressure drop due to energy losses if the flow velocity before the contraction is 3m/s.
💡 Hint: Use continuity equation to find velocity after contraction.
A globe valve experiences a pressure drop of 15 kPa while managing a flow of 0.5 m³/s. If the K factor for this valve is 0.18, calculate the approximate energy loss attributed to the valve.
💡 Hint: Recall the head loss relationship: h = K(v²/2g).
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