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# exam2 - EGN3353C Fluid Mechanics Spring 2010 Exam 2 1(5 The...

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1. (5) The incompressible steady fow in a pipe undergoes a sudden expansion in cross-sectional area From A 1 to A 2 , see the ±gure on the right. Ahead oF the expansion, the uniForm fow velocity and static pressure are u 1 and p 1 , respectively. Downstream oF the expansion, the uniForm fow velocity and static pressure are u 2 and p 2 , respectively. At the location oF the expansion, the static pressure is p 1 over the entire cross-sectional area. Neglecting viscous eFFects on the pipe walls and clearly indicating your choice oF control volume, compute p 2 given ρ =1.3 kg/m 3 , p 1 =97500 Pa, u 1 =12 m/s, A 1 =0.18 m 2 , and A 2 =0.21 m 2 . EGN3353C Fluid Mechanics Spring 2010 Exam 2 Continue with your answer on the back of this page if necessary u 1 u 2 p 1 p 2 A 1 A 2

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2. For the velocity feld with components u=x 2 y and v=xy 2 : a. (1) Determine the equation describing streamlines through the point (x A ,y A ). b. (1) Determine whether the velocity feld is incompressible.
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exam2 - EGN3353C Fluid Mechanics Spring 2010 Exam 2 1(5 The...

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