cee4324-5984_lecture12

cee4324-5984_lecture12 - CEE 4324/5984 Open Channel Flow...

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Glenn E. Moglen Department of Civil & Environmental Engineering Virginia Tech Momentum in Non-Rectangular Cross-Sections CEE 4324/5984 –Open Channel Flow – Lecture 12
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Questions from Lecture 11? Solutions and Review of Exam 1 Continue Momentum Review of Sluice Gate/Hydraulic Jump Problem Momentum in Non-Rectangular Cross- Sections Today’s Agenda:
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Test average is 50.8 Range is 30-88 Reminder: 3 exams total Each exam worth 20% of grade <<Solution to exam to be completed on whiteboard>> Review Exam 1
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Exam 1: Problem 1
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Exam 1: Problem 2
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Exam 1: Problem 3
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Exam 1: Problem 4
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Return to Sluice Gate/Hydraulic Jump
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Example 17: Return to Sluice Gate/Hydraulic Jump (cont.) <<qualitative system to be drawn on whiteboard>> q = 10 ft 2 /s y 1 = 8.0 feet Find: y 2 ? (alternate depth to y 1 ) y 3 ? (conjugate depth to y 2 ) Energy lost in jump? Momentum (thrust) on gate? Show results graphically.
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Return to Sluice Gate/Hydraulic Jump (cont.) 1 2e 2m 3m 3e E y 1 =8.0ft M
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Example 17: Take-away facts This example shows the graphical and numerical solution of a sluice- gate/hydraulic jump system.
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