Practice Natural (free) Convection (4) - Convection Heat Transfer - Heat Transfer & Thermal Machines
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Natural (Free) Convection

Practice - Natural (Free) Convection

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define natural convection in your own words.

💡 Hint: Think about how fluids react to heating.

Question 2 Easy

What is the Grashof number?

💡 Hint: Consider how it relates to fluid movement.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

Which of the following best describes natural convection?

Fluid motion driven by external forces
Fluid motion caused by buoyancy due to density differences
Fluid motion only in horizontal directions

💡 Hint: Think about how temperature affects buoyancy.

Question 2

True or False: The Grashof number is used to describe forced convection.

True
False

💡 Hint: Recall the function of the Grashof number.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Calculate the Grashof number for a vertical plate with a surface temperature of 60°C, ambient temperature of 20°C, a characteristic length of 0.5 m, and a kinematic viscosity of 1.0 x 10^-6 m²/s.

💡 Hint: Don’t forget to find β for the specific fluid.

Challenge 2 Hard

Discuss how you would design a system to enhance natural convection in an insulated home.

💡 Hint: Think about how maximizing surface contact with air would help.

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Reference links

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