5.1 - Proving the Hydraulic Radius Relation
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the hydraulic radius in a canal with an area of 50 m² and a wetted perimeter of 10 m?
💡 Hint: Use the formula R_h = A / P.
State what Manning's equation estimates in hydraulic engineering.
💡 Hint: Think about what variables are combined in Manning's equation.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does R_h represent in fluid mechanics?
💡 Hint: It's the area divided by the wetted perimeter.
True or False: The wetted perimeter decreases as the hydraulic radius increases.
💡 Hint: Consider how area and perimeter are related with hydraulic radius.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
Given a rectangular channel with dimensions 5 m by 2 m, calculate the flow discharge required for different depths using Manning's equation and the hydraulic radius.
💡 Hint: Adjust depth in your calculations for different discharge outputs.
Evaluate the effects of changing the roughness coefficient in Manning's equation on flow rates through a trapezoidal channel.
💡 Hint: Consider both high and low n values in your calculations.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.