Practice Computational Fluid Dynamics (contd.,) (1.5) - Computational fluid dynamics (Contd.)

Practice: Computational Fluid Dynamics (Contd.,)

Lesson 1.5Computational fluid dynamics (Contd.)

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is Reynolds shear stress?
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Think about how turbulence influences flow dynamics.
Question 2.
What does the k represent in the k-epsilon model?
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Consider what factors contribute to energy in fluids.
3Question 3.
What does the closure problem in CFD involve?
- Modeling unknown terms in equations
- Solving algebraic equations
- Determining flow rates
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Think about why simplifications are necessary.
4Question 4.
True or False: The k-epsilon model only accounts for mean kinetic energy.
- True
- False
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Consider what k represents.
Question 5.
Evaluate the feasibility of using DNS for simulating weather patterns characterized by high turbulence and what computational challenges you might face.
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Think about the resources available and scale of simulation needed.
Question 6.
Compare and contrast the k-epsilon model and turbulent flow characteristics in engineering applications, providing examples where one might be preferred over the other.
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Consider different aerospace and civil engineering scenarios to highlight this.

5 more questions in this section. Enroll free to practise them all.