Ch09_5_LF

# Ch09_5_LF - MAE130B Ch 09(5 Lift Changzheng Huang Lift 1...

This preview shows pages 1–7. Sign up to view the full content.

MAE130B – Ch 09 (5) Lift Changzheng Huang

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

View Full Document
Ch 09 (5) Changzheng Huang 2 Lift 1. Lift coefficient 2. Angle of attack dependence 3. An example 4. Circulation
Ch 09 (5) Changzheng Huang 3 1. Lift coefficient U D L θ x yp τ w U sin cos cos sin w w Dd A p d A Ld A p d A θθ τθ θ =+ =− ∫∫ n dx dy ds Friction drag and pressure drag, sin cos wf p A p d A D D = + Drag coefficients, 22 sin 11 w f Df dA D C UA ρρ == cos p Dp p dA D C

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

View Full Document
Ch 09 (5) Changzheng Huang 4 1. Lift coefficient U D L θ x yp τ w U sin cos cos sin w w Dd A p d A Ld A p d A θθ τθ θ =+ =− ∫∫ n dx dy ds Lift, Lift coefficient, 22 cos sin 11 w L dA p dA L C UA ρρ == cos sin w A p d A
Ch 09 (5) Changzheng Huang 5 U p 0 θ θ τ w p dA bRd θ = 0 2 1 2 p p p C U ρ = () 2 Re 1 2 w F U = θ θ 40 08 0 0 4 8 120 0 60 120 180 0 1.0 -1.0 Find C L 2 22 0 00 2 cos sin 1 2 1 cos sin Re 2 2 w L p dA p dA C UA UU F bRd p C bRd U Rb ππ τθ ρρ θθ π = ⎛⎞ −+ ⎜⎟ ⎝⎠ = ∫∫ p 0 1. Lift coefficient

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

View Full Document
Ch 09 (5) Changzheng Huang 6 U p 0 θ θ τ w p dA bRd θ = 0 2 1 2 p p p C U ρ
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 03/10/2009 for the course MAE 130B taught by Professor Huang during the Spring '09 term at UC Irvine.

### Page1 / 15

Ch09_5_LF - MAE130B Ch 09(5 Lift Changzheng Huang Lift 1...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online