drag - FD = CD U2A mg = 120 kg U = 6 m/s Sum of forces = 0,...

Info iconThis preview shows pages 1–22. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

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

View Full DocumentRight Arrow Icon
mg = 120 kg U = 6 m/s F D = C D ½ ρ U 2 A Sum of forces = 0, pick A so U = 6 m/s C D ½ ρ U 2 A = mg
Background image of page 2
Re 10 4 Fox Re 10 3 1.42
Background image of page 3

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

View Full DocumentRight Arrow Icon
mg = 120 kg F D = C D ½ ρ U 2 A C D = 1.42 for open hemisphere F D = C D ½ ρ U 2 A = W = mg A = π d 2 /4 U = 6 m/s d 2 = [mg]/[C D ρ U 2 π /8] d = [(8/ π )(120kg)(9.8 m/s 2 ) (1/1.42)(1/1.23 kg/m 3 )(1/6m/s) 2 ] 1/2 d = 6.9 m d
Background image of page 4
Examples
Background image of page 5

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

View Full DocumentRight Arrow Icon
Background image of page 6
F D = C D ½ ρ U 2 A F D = ma = m(dU/dt) = m(dU/dx)(dx/dt) C D ½ ρ U 2 A = m (dU/dx) U
Background image of page 7

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

View Full DocumentRight Arrow Icon
C D = 2m ln {U f/ U i } /[ ρ A Δ x] C D = 0.299 C D ½ ρ U 2 A = m (dU/dx) U dU/U = C D ρ A dx /(2m)
Background image of page 8
Background image of page 9

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

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

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

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

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

View Full DocumentRight Arrow Icon
Background image of page 14
Background image of page 15

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

View Full DocumentRight Arrow Icon
Background image of page 16
Background image of page 17

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

View Full DocumentRight Arrow Icon
Background image of page 18
Background image of page 19

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

View Full DocumentRight Arrow Icon
Background image of page 20
Background image of page 21

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

View Full DocumentRight Arrow Icon
Background image of page 22
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/26/2010 for the course MAE 101B 101B taught by Professor Rohr during the Summer '09 term at UCSD.

Page1 / 22

drag - FD = CD U2A mg = 120 kg U = 6 m/s Sum of forces = 0,...

This preview shows document pages 1 - 22. Sign up to view the full document.

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