Tài liệu Open channel hydraulics for engineers Chapter 4 non uniform flow ppt

... is OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 4: NON- UNIFORM FLOW 73 4. 1.3. Equation of non- uniform flow Fig. 4. 3. Non- uniform flow Consider a non- uniform ... the length required for this channel to be OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 4: NON- UNIFORM FLOW 83 4. 3 .4. Compo...

Ngày tải lên: 20/12/2013, 19:15

... weir Chapter 4: NON- UNIFORM FLOW 4. 1. Introduction. 4. 2. Gradually-varied steady flow. 4. 3. Types of water surface profiles. 4. 4. Drawing water surface profiles. + + + + + + + OPEN CHANNEL ... Fig. 1.6. Uniform flow in open channel Discharge through an open channel: RiACVAQ  (1-13) Q VA Q i L h OPEN CHANNEL HYDRAULICS FOR ENGI...

Ngày tải lên: 20/12/2013, 19:15

... A 2h h  (2- 24) h b OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 2: UNIFORM FLOW 27 2.1.2. Momentum analysis Consider a control volume of length L in uniform flow, as shown ... hard-surfaced channels, silting is easily controlled if fall for scouring velocity is available. OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 2: UNIFORM F...

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... supercritical flow  occurrence of hydraulic jump. OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 3: HYDRAULIC JUMP 55 3 .4. TYPES OF HYDRAULIC JUMP 3 .4. 1. Criterion for a critical ... 2 k 2 q E 2gh  E s = h 45  C h depth E E min E vs h for q = constant OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 3: HYDRAULIC JUMP 64 3...

Ngày tải lên: 20/12/2013, 19:15

... rectangular channel. OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 5: SPILLWAYS 94 The sharp-crested weir is of fundamental interest, because its associated theory forms a basis for ... OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 5: SPILLWAYS 105 5.5.2. Broad-crested weir discharge formula Consider the section on the weir crest in case...

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... subdivided accordingly. flow (a) Pipe flow flow h 1 h 2 ? z 2 1 V 2g 2 2 V ? 2g  (b) Open channel flow OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 6: TRANSITIONS AND ... advantage in increasing the step height. nappe flow skimming flow air entrainment and separate, uniform depth OPEN CHANNEL HYDRAULICS FOR ENGINEERS Cha...

Ngày tải lên: 20/12/2013, 19:15

... amount: steady uniform flow steady non- uniform flow unsteady non- uniform flow 1 2 h +z Q 1 Q 2 x datum OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 7: UNSTEADY FLOW 136 Continuity: ... forward characteristic C 1 defined by: OPEN CHANNEL HYDRAULICS FOR ENGINEERS Chapter 7: UNSTEADY FLOW 140 7.3.3. The simple-wave...

Ngày tải lên: 20/12/2013, 19:15

... Chapter 4: NON- UNIFORM FLOW 70 4. 1. Introduction 70 4. 1.1. General 70 4. 1.2. Accelerated and Retarded flow 71 4. 1.3. Equation of non- uniform flow 73 4. 2. Gradually-varied steady flow 75 4. 2.1. ... 82 4. 3 .4. Composite flow profiles with various controls 83 4. 4. Drawing water surface profiles 84 4. 4.1. Direct-step method 84 4. 4.2. Direct numerical int...

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Ngày tải lên: 25/01/2014, 23:20

... billion 2 54. 3 139.6 1 14. 7 167.5 86.8 others (2001) Developed 146 .2 96.6 49 .6 121.8 24. 4 Full merchandise Economies in transition 6 .4 4.5 1.9 3.5 2.9 trade liberalization Sub-Saharan Africa 4. 6 2.6 ... compounds 14 8 8 742 Drawing, marking-out, disc calculators 14 7 79 24 Aircraft 14 2 7832 Road tractors and semi-trailers 14 10 0 546 Vegetables, frozen or in temporary preserva...

Ngày tải lên: 25/01/2014, 23:20