p1016 - x is Re x = U x w = (16 knots) X . 514 m / sec knot...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
1090 CHAPTER 10. VORTICITY AND VISCOSITY 10.16 Chapter 10, Problem 16 Above the waterline: First, note that the Reynolds number based on x is Re x = U x ν a = (16 knots) X 0 . 514 m / sec knot ~ (100 m) 1 . 51 · 10 5 m 2 / sec =5 . 45 · 10 7 The boundary-layer thickness near the trailing edge of the hull above the waterline is δ =0 . 37 xRe 0 . 2 x =0 . 37(100 m) p 5 . 45 · 10 7 Q 0 . 2 =1 . 05 m The effective angle is tan 1 X δ x ~ =tan 1 w 1 . 05 m 100 m W =0 . 6 o Below the waterline: First, note that the Reynolds number based on
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: x is Re x = U x w = (16 knots) X . 514 m / sec knot ~ (100 m) 1 . 31 10 6 m 2 / sec = 6 . 28 10 8 The boundary-layer thickness near the trailing edge of the hull below the waterline is = 0 . 37 xRe . 2 x = 0 . 37(100 m) p 6 . 28 10 8 Q . 2 = 0 . 64 m The effective angle is tan 1 X x ~ = tan 1 w . 64 m 100 m W = 0 . 37 o...
View Full Document

Ask a homework question - tutors are online