Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
Define Local Coefficient of Drag (C_D*).
Think about how shear stress relates to the flow.
What is the significance of the boundary layer thickness?
Consider how it affects velocity profiles.
What does the local coefficient of drag represent?
Reflect on the components that contribute to drag.
Turbulent boundary layers grow at a rate of x^0.8.
Think about how different flows affect the layer's growth.
A flat plate has a velocity profile given by u/U = (y/δ)^2. Find the local coefficient of drag given the relevant data.
Approach it step by step, looking at momentum relations.
Given a turbulent flow with a Reynolds number of 1.2x10^6 and a boundary layer thickness of 8 mm, calculate the drag force exerted on a plate of length 2 meters.
Use your understanding of shear stress and multiply with area.
4 more questions in this section. Enroll free to practise them all.
Enroll free