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Use the method of images to construct the flow pattern for a source +m near two walls, as in Fig. Sketch the velocity distribution along the lower wall
Using the geometry of Fig. prove that the most efficient circular open channel (maximum hydraulic radius for a given flow area) is a semicircle.
The vertical gate in a water channel is partially open, as in Fig. Assuming no change in water level and a hydrostatic pressure distribution
The uniform 5-m-long wooden rod in the figure is tied to the bottom by a string. Determine
The Tupperware dam on the Blackstone River is 12 ft high, 100 ft wide, and sharp-edged. It creates a backwater similar to Fig
The trapezoidal channel of Fig is made of brickwork and slopes at 1:500. Determine the flow rate if the normal depth is 80 cm.
The U-tube at right has a 1-cm ID and contains mercury as shown. If 20 cm3 of water is poured into the right-hand leg, what will be the free surface height
The ultralight plane Gossamer Condor in 1977 was the first to complete the Kremer Prize figure-eight course solely under human power
The volume flow Q over a dam is proportional to dam width B and also varies with gravity g and excess water height H upstream, as shown in Fig.
The velocity field near a stagnation point may be written in the form
The wall shear stress tw for flow in a narrow annular gap between a fixed and a rotating cylinder is a function of density ?, viscosity µ, angular velocity O
The water jet in Fig strikes normal to a fixed plate. Neglect gravity and friction, and compute the force F in newtons required to hold the plate fixed.
The water pipe in Fig. 6.106 slopes upward at 30°. The pipe is 1-inch diameter and smooth. The flanged globe valve is fully open
The water tank in Fig stands on a frictionless cart and feeds a jet of diameter 4 cm and velocity 8 m/s, which is deflected 60° by a vane
The waterwheel in Fig lifts water with 1-ft-diameter half-cylinder blades. The wheel rotates at 10 r/min, what is the water surface angle ? at pt A?
The waterwheel in Fig is being driven at 200 r/min by a 150-ft/s jet of water at 20°C. The jet diameter is 2.5 in.
The wide channel flow in Fig changes from a steep slope to one even steeper. Beginning at points a and b, sketch and label the water surface profiles
The supersonic nozzle is over expanded with Ae/At = 3.0 and a stagnation pressure of 350 kPa. If the jet edge makes a 4° angle with the nozzle centerline
The system in Fig consists of 1200 m of 5 cm cast-iron pipe, two 45° and four 90° flanged long-radius elbows, a fully open flanged globe valve
The tank in Fig is filled with water and has a vent hole at point A. It is 1 m wide into the paper. Inside is a 10-cm balloon filled with helium at 130 kPa.
The tank in Fig is 2 m wide into the paper. Neglecting atmospheric pressure, find the resultant hydrostatic force on panel BC
The tank in Fig has a 4-cmdiameter plug which will pop out if the hydrostatic force on it reaches 25 N. For 20°C fluids, what will be the reading h
The tank of water in Fig is 12 cm wide into the paper. If the tank is accelerated to the right in rigid-body motion at 6 m/s2, compute
The three-reservoir system in Fig delivers water at 20°C. The system data are as follows:
The three-legged manometer in Fig is filled with water to a depth of 20 cm. All tubes are long and have equal small diameters.