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# Class16_Ex2 - 4.51 The velocity of water flow in the nozzle...

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Unformatted text preview: 4.51 The velocity of water flow in the nozzle shown is given by the following expression: V = 2t/(l — 0.5x/L)2, where V = velocity in feet per second, t = time in sec- onds, x = distance along the nozzle, and L = length of nozzle = 4 ft. When I = 0,5L and t = 3 5, what is the local acceleration along the centerline? What is the convective acceleration? Assume one-dimensional flow garcvails. . d' 1ft tameter I L=4-ft ‘ A v ”av 1: ut+u¢+oﬂz 94;;- ﬁ+i-Vy_ y=qw£ue Ax: “0A4,“1‘3; ’kk 0-211: 1. ‘AI (\_-_\$_)§ ‘L dua:l\.t:0 L.- ‘Eu 2" «5:. '— \""'£1‘30 -£ ‘ﬁ_0‘ﬂ,_ \X-L-é-xl—lﬂ .w L \- fw - L —- “-H A! M" —-—\ """‘ "-—-—-—I " 3-36 __ o ‘5‘: X:._\’L (i--s?-)"'* 5L eess .1. 2m 2(- 11- _,_ SEE... ﬂow: ’U\ :6.“ ' a,“ 2.. ' r 2-. 5'1 { ova-cl o- a291- L0“ 5 ...
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