Unformatted text preview: L 2 2 ⋅ − = Thus the minimum pressure occurs at point A (not B). Substituting known data to find the pressure at A: p A 14.7 lbf in 2 ⋅ 1.94 slug ft 3 ⋅ 1600 rev min ⋅ 2 π ⋅ rad ⋅ rev × min 60 s ⋅ × ⎛ ⎝ ⎞ ⎠ 2 × 1 2 × 3 in ⋅ ft 12 in ⋅ × ⎛ ⎝ ⎞ ⎠ 2 × lbf s 2 ⋅ slug ft ⋅ × ft 12 in ⋅ ⎛ ⎝ ⎞ ⎠ 2 × − 2.881 lbf in 2 ⋅ = = At 68 o F from steam tables, the vapor pressure of water is p v 0.339 psi ⋅ = which is less than the pressure at A. Therefore, cavitation does not occur.:...
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 Fall '07
 Lear
 Fluid Mechanics

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