Practice Non-dimensionalization And Order Of Magnitude Analysis (12.3.3) - Boundary Layer Approximation II

Practice: Non-dimensionalization and Order of Magnitude Analysis

Lesson 12.3.3Boundary Layer Approximation II

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10 questions

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4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is non-dimensionalization?
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Think about simplifying equations for comparison.
Question 2.
Define Reynolds Number.
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It determines flow characteristics.
3Question 3.
What does the Reynolds number indicate?
- Flow turbulence level
- Viscosity
- Pressure
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Remember, it compares inertial and viscous forces.
4Question 4.
True or False: Non-dimensionalization always results in the same type of equation regardless of system size.
- True
- False
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Think about the importance of dimensionless forms.
Question 5.
Given a scenario where a fluid flows over a flat plate with a known viscosity and velocity, calculate the Reynolds number and predict whether the flow is laminar or turbulent. Use a flaw assumption of a plate length.
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Use typical values for density and viscosity if not provided.
Question 6.
Analyze a flow situation applying non-dimensionalization to the Navier-Stokes equations. Identify terms to retain and eliminate based on their order of magnitude.
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Consider simplifying terms as much as possible, focus on key driving forces in flow.

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