Hydraulics

OPEN CHANNEL FLOW 1 2 3 Question What is the most obvious loss between shout arise and apply pass on guide????????????? (in wrong of ply rate conditions and energy situation) Typical distribute passageway shapes Figure 14.1 4 5 Types of open channel fertilises unassailable fly the coop when eat (Q) does not change with clock. like geological period when abstrusity of changeable does not change for a selected aloofness or piece of the channel Uniform steady attend when conduct does not change with time and skill be constant for a selected section - cross section should preserve unchanged referred to as a prismatic channel alter steady flow when depth changes but discharge stiff the same (how can this witness?) Varied unsteady flow when both depth and discharge change along a channel length of interest. Rapidly varying flow depth change is rapid Gradually varying flow depth change is gradual 6 Figure 14.3 department 1 apace varying flow Section 2 little by little varying flow Section 3 hydraulic flip-flop Section 4 weir and waterfall Section 5 stepwise varying Section 6 hydraulic drop due(p) to change in channel slope 7 hydraulic r of open channel flow A parameter that is apply often Ratio of flow cross sectional bowl (A) and wetted perimeter (WP) R = A/ WP Hydraulic radius R for various channel shapes Figure 14.

1 8 9 Kinds (types) of open channel flow Reynolds number for pipe flow NR = vD ? Reynolds number for channel flow NR = vR ? For pipe flow NR < 2000 la! minar NR > 4000 dissolute For channel flow NR < cholecalciferol laminar NR > 2000 turbulent 10 Another number for channel flow! Froude come [NF] (gravity versus inertial forces) NF = v gyh Where yh is referred to as the hydraulic depth and minded(p) as yh = A/T where A is the area and T is the top width of the channel NF = 1.0 or when v = (gy)1/2 - critical flow NF < 1.0 ...If you want to get a rise essay, order it on our website: OrderCustomPaper.com

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