17.1.1 - Simplifications and Assumptions
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Practice Questions
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What is the Mach number threshold for assuming incompressible flow?
💡 Hint: Remember the conditions under which flow becomes incompressible.
Define control volume.
💡 Hint: Think about where you would set boundaries in flow problems.
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Interactive Quizzes
Quick quizzes to reinforce your learning
Under what Mach number is the flow generally considered incompressible?
💡 Hint: Think about the balance of flow properties.
True or False: Incompressible flow means that the density of the fluid changes regardless of the flow conditions.
💡 Hint: Reflect on the definition of incompressibility.
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Challenge Problems
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A fluid with a Mach number of 0.15 is flowing in a horizontal pipe. Describe how you would analyze the flow in terms of the simplifications discussed and derive the relevant equations.
💡 Hint: Refer to the definitions of incompressible flow.
If a pipe has a varying diameter, explain how you would approach calculating mass flow rate with respect to the assumptions laid out about incompressibility.
💡 Hint: Think about how area affects velocity in comparison with density.
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