- #1
K41
- 94
- 1
Lumley, turbulence textbook on boundary layers, introduction pages:
"The turbulent eddies transfer momentum deficit away from the surface".
Can anyone explain what this means, specifically what is momentum deficit? In my mind, the word "deficit" means a shortage of something, so how can one write that a shortage of something is transferred somewhere?
This lecture also has the phrase "momentum deficit" but doesn't explain it:
http://www.bakker.org/dartmouth06/engs150/11-bl.pdf
"The turbulent eddies transfer momentum deficit away from the surface".
Can anyone explain what this means, specifically what is momentum deficit? In my mind, the word "deficit" means a shortage of something, so how can one write that a shortage of something is transferred somewhere?
This lecture also has the phrase "momentum deficit" but doesn't explain it:
http://www.bakker.org/dartmouth06/engs150/11-bl.pdf