open channel flowopen channel flow - nbcbnmicrosoft powerpoint - presentation1.pptx author:...
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Open Channel FlowOpen Channel FlowOpen Channel FlowOpen Channel Flow
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Basic EquationsBasic Equations
• Conservation of MassConservation of Mass• Conservation of Linear Momentum
C i f• Conservation of Energy
2Yasser Raslan
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Conservation of Mass(Continuity Equation)
system theofout flux Mass -system theintoflux Massvolumecontrolin themassin changeof rate Time=
QVAVA == 2211
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Conservation of Linear MomentumConservation of Linear Momentum
Flux of momentum out of the control volume –Flux of momentum out of the control volume Flux of momentum into the control volume + Time rate of change of momentum in the e ate o c a ge o o e tu t econtrol volume = Sum of the forces acting on the fluid in the control volumee u d e co o vo u e
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Conservation of EnergyBernoulli Equation
Flux of energy out of the control volume – Flux ofFlux of energy out of the control volume Flux of energy into the control volume + Time rate of change of energy in the control volume = Rate at which heat is added to a fluid system – the rate at which a fluid system does work on its surroundings
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St Venant EquationsSt. Venant Equations
• Continuity EquationContinuity Equation
• Momentum Equation
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ChChezy
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From Continuity Equation A = bh
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• From the momentum equationFrom the momentum equation
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Adding the energy and momentum i d b i hequations and subtracting them
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St Venant EquationsSt. Venant Equations
For For
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