Question: A pipe flow expands from (1) to (2), causing eddies as shown. Using the given CV and assuming p = p1 on the corner annular

A pipe flow expands from (1) to (2), causing eddies as shown. Using the given CV and assuming p = p1 on the corner annular ring, show that the downstream pressure is given by, neglecting wall friction,
p2 = p1 + pv 2/1 (A1/A2) (1-A1/A2)

Pressure - P Control volume 1

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