Practice Department Of Civil Engineering (1.2) - Computational fluid dynamics (Contd.)
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Department of Civil Engineering

Practice - Department of Civil Engineering

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the Reynolds shear stress measure in a fluid flow?

💡 Hint: Think about how turbulence affects mean velocities.

Question 2 Easy

What do 'k' and 'epsilon' stand for in the k-epsilon turbulence model?

💡 Hint: Consider the components of turbulence.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary purpose of the k-epsilon model?

To predict laminar flow
To calculate turbulence effects
To simulate incompressible flow

💡 Hint: Think about what aspect of fluid dynamics the k-epsilon model addresses.

Question 2

True or False: Direct Numerical Simulation does not use any turbulence models.

True
False

💡 Hint: Consider the definition of Direct Numerical Simulation.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A turbulent pipe flow exhibits a Reynolds number of 10,000. Given this, calculate the necessary resolution for a Direct Numerical Simulation to model accurately.

💡 Hint: Relate the Reynolds number to grid size and computational requirements.

Challenge 2 Hard

Design an experimental procedure using the k-epsilon model for testing airflow in a wind tunnel. What parameters would you measure?

💡 Hint: Think about the flow characteristics that would be influenced by the turbulence model.

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