# A pipe of cross-sectional area A suddenly increases to an area of 10A. The air velocity in the pipe is V, and the pressure at station 1 is p1. After undergoing mixing in the larger pipe, the velocity becomes again at station 2, where the velocity is V2, and the pressure is p2. Assume the density ρ is constant everywhere (low speed flow). Be sure to clearly draw the control volume you will be using.

A pipe of cross-sectional area A suddenly increases to an area of 10A. The air velocity in the pipe is V, and the pressure at station 1 is p1. After undergoing mixing in the larger pipe, the velocity becomes again at station 2, where the velocity is V2, and the pressure is p2. Assume the density ρ is constant everywhere (low speed flow). Be sure to clearly draw the control volume you will be using.

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