# ch06 - Introduction to Fluid Mechanics 7 th Edition Fox...

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Unformatted text preview: Introduction to Fluid Mechanics 7 th Edition Fox, Pritchard, & McDonald Answers to Selected Problems, Chapter 6 6.1 2 ft/s ˆ 7 ˆ 9 j i a + = r psi/ft ˆ 544 . ˆ 125 . j i p − − = ∇ 6.3 ( ) 2 local ft/s ˆ ˆ 10 j i a + = r ( ) ( ) j Bt Ay A i Bt Ax A a ˆ ˆ conv + − − + = r 2 conv ft/s ˆ 200 ˆ 300 j i a − = r psi/ft ˆ 43 . ˆ 56 . 2 ˆ 17 . 4 k j i p − + − = ∇ 6.5 2 ft/s ˆ 7 ˆ 1 j i a + = r psi/ft ˆ 544 . ˆ 0139 . j i p − − = ∇ 6.7 v = − Ay 2 m/s ˆ 4 ˆ 8 j i a + = r Pa/m ˆ 7 . 14 ˆ 6 ˆ 12 k j i p − − − = ∇ p ( x ) = 190 − 3 x 2 /1000 ( p in Pa, x in m) 6.9 Incompressible Stagnation point: (2.5, 1.5) ( ) ( ) [ ] k g j y i x p ˆ ˆ 6 4 ˆ 10 4 + − + − − = ∇ ρ Δ p = 9.6 Pa 6.11 ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ − − = L x L U a x 2 1 2 2 ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ − = L x L U dx dp 2 1 2 2 ρ p out = 43.3 kPa (gage) 6.13 2 m/s ˆ 0507 ....
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ch06 - Introduction to Fluid Mechanics 7 th Edition Fox...

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