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Problem 4.38 - y y โŒ  โŽฎ โŒ d โ‹… V 1max h 1 h 1 2 2 โ‹…...

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Problem 4.38 [Difficulty: 2] Given: Data on flow at inlet and outlet of a reducing elbow Find: Find the maximum velcoity at section 1 Solution: 0 = CS A d V r r ρ Basic equation Assumptions: 1) Steady flow 2) Incompressible flow Evaluating at 1, 2 and 3 0 h 1 y V 1 y ( ) w d V 2 w h 2 + V 3 w h 3 + 0 = or V 1max h 1 0 h 1 y y
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Unformatted text preview: y y โŒ  โŽฎ โŒก d โ‹… V 1max h 1 h 1 2 2 โ‹… = V 2 h 2 โ‹… V 3 h 3 โ‹… + = Hence V 1max 2 h 1 V 3 h 3 โ‹… V 2 h 2 โ‹… + ( ) โ‹… = V 1max 2 0.5 m โ‹… 5 m s โ‹… 0.15 ร— m โ‹… 1 m s โ‹… 0.2 ร— m โ‹… + โŽ› โŽ โŽž โŽ  โ‹… = V 1max 3.80 m s =...
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