cee4324-5984_lecture26

cee4324-5984_lecture26 - CEE 4324/5984 Open Channel Flow...

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Glenn E. Moglen Department of Civil & Environmental Engineering Virginia Tech Using HEC-RAS to Compute Surface Water Profiles CEE 4324/5984 –Open Channel Flow – Lecture 26
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Questions from Lecture 25? Review of conjugate curve concept Final Exam Format Vote Outcome HEC-RAS Introduction Demonstration Contrast with Standard Step Method Plans for Last Class Meeting Today’s Agenda:
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Conjugate Curve Concept Figure from Henderson (1966).
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Overall Concept – when conjugate curve intersects actual surface water profile, jump occurs from conjugate to conjugate. For our purposes jump is idealized as instantaneous (vertical) Image on previous slide illustrates the concept. Mechanics – in spreadsheet application, trace actual profile as usual and simultaneously apply hydraulic jump equation to determine conjugate depth to input y . Let graph guide you to jump location. Conjugate Curve – Quantitatively
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This note was uploaded on 12/24/2011 for the course CEE 4324 taught by Professor Moglen during the Fall '11 term at Virginia Tech.

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cee4324-5984_lecture26 - CEE 4324/5984 Open Channel Flow...

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