hydrulic machines
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Name of the faculty: K.Naveen KumarDesignation: LecturerBranch: Civil EngineeringInstitute: J.N.Govt.Potytech,HydYear / Semester: v SemMajor Topic: Flow through pipesSub Topic: Chezys formula for loss of head in pipesSub. Code &Title: C-505 : Hydraulics IIDuration: 50 min. Teaching Aids: PPT, Animations BORAD OF TECHNICAL EDUCATION ANDHRAPRADESH
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OBJECTIVES:
On the completion of this period you would be able toDerive the Chezys formula for Loss of head Due to friction in pipes
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Recap:In the previous class, you have learnt about:
Derivation of Darcys Equation for loss of head in pipes.
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Chezys formula for FRICTION LOSS IN PIPE FLOW
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Chezys equation for losses of head due tofriction in pipes:
In the previous derivation of darcys equation for losses of head due to friction in pipes, We have seen eq 3.
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Where
hf= Loss of head due to friction
A= Cross section of pipe
P= Wetted perimeter of pipe
L= Length of pipe
V= mean velocity of flow
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Now (A/P) is called as hydraulic mean depth and is denoted by m
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Substituting in eq 3,
we get
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Let
And
Where C = Chezys constant i = loss of head per unit length of pipe
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Substituting C & i in earlier equation, we get
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SummaryWe have discussed about
The derivation of chezys equation for loss of head due to friction in pipes
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QUIZ1.The major loss of head in a pipe line occurs due to
(a)Density
(b)Viscosity
(c)Pressure
(d)friction
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The loss of head due to friction is a function of
(a)V
(b)V2
(c)1/V
(d)1/V2
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Frequently Asked QuestionsDerive Chezys equation for loss of head due to friction in Pipes ?
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