Aerodynamics - Laminar and Turbulent Seperation

3 important questions on Aerodynamics - Laminar and Turbulent Seperation

Why is flow seperation important?

  1. Loss of lift (airfoil)
  2. Increase of pressure drag
  3. Generation of unsteady loads. (could hit stabilizer)

How will the graph look when there is friction?

Laminar flow (low reynolds number):
Flow seperated before thickest point

Difference is Delta Cp = 2
==> suction in the back  

Turbulent flow (high reynolds number):
Sticks to surface longer 

A lot of pressure drag!

Why does turbulent flow sticks to the surface better?

Kinetic energy can be exchanged for friction.

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo