16100lectre13_cg

16100lectre13_cg - Kutta Condition Thought Experiment1...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Kutta Condition Thought Experiment 1 Suppose we model the flow around an airfoil using a potential flow approach. We know the following: LV ρ ′ = Γ u φ =∇ K 0 D ′ = 0 ω = K 0 un = KK i Bernoulli applies Question : How many potential flow solutions are possible? Answer : Infinitely many! For example: Both of these flows have circulation which are not all equal 12 LL ′′ Γ≠Γ⇒ ≠ 1 Anderson, Sec. 4.5 V 8 p L' Flow #1 Flow #2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Kutta Condition 16.100 2002 2 Another difference can be observed at the trailing edge: As a result of this and the physical evidence, Kutta hypothesized: In a physical flow (i.e. having viscous effects), the flow will smoothly leave a sharp trailing edge. - Kutta Condition Flow #1 is physically correct! Let’s look at Flow #1 a little more closely: Finite angle T.E. ) 0 ( > te α Flow leaves t.e. smoothly.
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

16100lectre13_cg - Kutta Condition Thought Experiment1...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online