15.2.1 - Physical Modelling Experiments
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Practice Questions
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What is geometric similarity?
💡 Hint: Think about scaling shapes.
What does dimensional analysis check?
💡 Hint: Dimensions must match.
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Interactive Quizzes
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What is geometric similarity?
💡 Hint: Think of scaling shapes.
The Reynolds Number helps predict:
💡 Hint: What type of flow does it relate to?
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Challenge Problems
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You have a model scaled down by a factor of 1:50 of a prototype dam. If the model has a flow velocity of 2 m/s, calculate the equivalent flow velocity in the prototype.
💡 Hint: Convert the length scale to velocity using the square root of the scale factor.
Create a scenario where dynamic similarity is crucial in a hydrodynamic test. Describe the factors to be considered and how you would ensure dynamic similarity.
💡 Hint: Focus on the forces like pressure, gravity, and inertia.
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