3.66 A long water trough of triangular cross section is formed from two planks as is shown in Fig. P3.66. A gap of 0.25 cm. re- mains at the junction of the two planks. If the water depth ini- tially was 0.6 m, how long a time does it take for the water depth to reduce to 0.3 m? 0.6 m boonly 0.25 cm V 90°-

Q: For Problems 3.8 through 3.10, solve för the support tions at A and B. 3.8 W=300/FT. 3.9 4 m W= 15…

A: in both questions there is one roller support and no horizontal force , so horizontal reactions will…

Q: 2.92 An open tank containing water has a bulge in its vertical side that is semicircular in shape as…

A: Given: The length of a bulge is 1 ft. The radius of a semi-circular shape is r = 3 ft.   To…

Q: 18. The beam is pin supported at A and roller supported at B. It carries a distributed load q = 8.0…

A: Given, A beam of cross section = 200mm×250mm q= 8kN/m Find out :- maximum flexure stress,

Q: Find: Max. V =? Max. M= 7

A: x=83=2.67 from A ∑MA=0 15×8×4 + 20×2.67 - RB×8 = 0RB = 66.675 kN∑V=0RA+RB=15×8 + 20RA = 73.325 kN

Q: The thin-plate orifi ce in Fig. P3.85 causes a large pressuredrop. For 20° C water fl ow at 500…

A: Draw the figure. Here p is the pressure, A is the area, m is the mass flow rate, F is the force of…

Q: The bulk head AD is subjected to both water and soil- backfill pressures. Assuming AD is “pinned” to…

A: First, we draw the free body diagram:-

Q: Gate AB in Fig. P2.51 is 1.2 m long and 0.8 m into the paper. Neglecting atmospheric-pressure…

A:

Q: For the frame shown, Determine the magnitude of the pin reaction at A given that P = 44 KN; a = 0.6…

A: To find reaction at point A

Q: 3.66 A long water trough of triangular cross section is formed from two planks as is shown in Fig.…

A:

Q: 35.6 kN 35.6 kN 71.2 kN 71.2 kN 5 m 35.6 kN 35,6 kN -4 at 6.1 m 20.4 m-

A:

Q: A 6-m-high, 5-m-wide rectangular plate blocks the end of a 5-m-deep freshwater channel, as shown in…

A: Resultant force due to water=γAx¯                                                   =9.81×5×5×2.5…

Open Channel Flow

Open channel flow is a branch of fluid mechanics. It deals with the flow of fluid in an open conduit or free surface. In an open channel flow, gravity induces the flow of water whose surface is open to the air. This flow is free-falling rather than confined in rigid body conduits. The open channel flow depends upon two parameters that are the cross-section of the conduit and the velocity profile. Practical examples of open channel flow are streams, rivers, canals, and other drainage systems.In open channel flow, the cross-sectional area of at least one of the sides is exposed to air, and the surface of water faces atmospheric pressure. This flow is also known as free gravity flow. The cross-sectional area of the conduit can be either man-made or a natural channel. For instance, the flow in rivers and streams are natural conduits, and the flow in a canal and sanitary systems are man-made or engineered channels.