What is the primary force of saturated flow? O a) gravity O b) puling c) capillarity d) both 1 and 2 e) all of the above
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- In Laminar flow the mean velocity of flow is 10 m/s, the shear velocity (in m/s) is А Skippe d 2 B 3 C 4 D 5 (f = 0.32).1. Compute the following volumes. a) V?(1) b) VÝ(2) c) v(3) d) V(4) e) V°(10)Problem 9-36 pipe bend shown is in a horizontal plane. A fluid weighing 8.615 kN/m enters the bend with a velocity of 3.5 m/s and a pressure of 280 kPa. Neglecting head loss, find the force required to hold the bend in place. The Ans 10.4 kN 65 200 mm O 80 mm diam
- 7.Reynolds found laminar flow occurs when Re<1000 and turbulent occurs when Re<4000 O true O FalseQ:When B1/z=D0.5 & B2/Z= 1.0 so find 15? I=? TABLE 8.8 Influence Factor I, by Equation (8.11) (Half Embankment Load) B,/z B/z 0.01 0.02 0.04 0.06 0.1 0.2 0.4 0.6 0.8 4 6 8 10 0.003 0.006 0.013 0.019 0.032 0.063 0.121 0.172 0.215 (0.250 0.352 0.422 0.447 0.460 0.468 0.1 0.066 0.069 0.076 0.082 0.094 0.123 0.176 0.221 0.258 0.288 0.375 0.434 0.455 0.466 0473 0.2 0.127 0.130 0.136 0.141 0.153 0.179 0.227 0.265 0.297 0.322 0.394 0.444 0.462 0.471 0.477 0.3 0.183 0.186 0.191 0.196 0.206 0,230 0.271 0.303 0.330 0,351 0.411 0.452 0.468 0476 0.480 0.4 0.233 0.235 0.240 0.245 0.253 0.274 0.308 0.336 0.358 0.375 0.425 0.459 0.472 0.479 0483 0.5 0.277 0.279 0.283 0.287 0.294 0.311 0.340 0.363 0.381 0.395 0.437 0.466 0.477 0.482 0.486 0.6 0.314 0.316 0.319 0.322 0.329 0.343 0.367 0.386 0.400 0.412 0.446 0.471 0.480 0.485 0.488 0.7 0.345 0.347 0.349 0.352 0.357 0.369 0.389 0.404 0.416 0.426 0.454 0.475 0.483 0.487 0.489 0.8 0.371 0,372 0.375 0.377 0.381 0.391 0.407 0.419 0.429 0.437 0,461 0.478…What does a negative flow rate mean?A. This value is incorrect and shall be indicative of wrong computation.B. The head loss is actually a head gain.C. The correct direction is opposite of the assumed direction of the flow rate.D. None of the above.
- A channel has been designed to convey clear water to a fish hatchery. The design calls for aflow depth of 2.0 ft and a velocity of 2.0 ft/s. The channel is very wide so the side effects canbe neglected and the hydraulic radius taken as equal to the depth. It is to be constructed insand which has a median diameter ds = 0.915 mm (0.003 ft). For a flat bed in this materialthe Darcy-Weisbach friction factor is estimated to be f = 0.0185 and the required channelslope is S = 0.000145. The water temperature is 20°C and the kinematic viscosity υυ is = 1.08x 10-5 ft2/s. The specific gravity of the sand is 2.65. Clear water is admitted to the channeland it is imperative that no material be scoured from the bed since any sand in the hatcherywill result in instantaneous death of all the fish. Using Shields' diagram, determine if theexisting design is adequate to deliver clear water to the hatchery.A new steel pipe (f= 0.02) of 7000m length and 600mm diameter connects two reservoirs as shown. Including all losses, design the water level elevation in reservoir A such that the required flow rate of 0.5m³/s is achieved. Draw the EGL and HGL. %3D ma eyad Tarawneh z= ??? AMSL A z = 650 AMSL В VQ.5 [] The velocity of flow of water in a pipe of 150 mm dia is 0.3 m/sec, a diaphragm with a central hole 80mm in diameter is placed in the pipe obstructing the flow. With coefficient of contraction Cc=0.60, the loss of head from Vena Contracta to a point downstream will be
- Determine the size of a circular concrete pipe (n = 0.013) to carry 150 ft³/s of stormwater on a slope of 0.007. What is the depth of flow in the pipe? S 1.0 0.8 0.6 0.4 0.2 0.0 D 0.0 0.2 0.4 0.6 Q'2p² 0.8 1.0 Figure 5.3 Discharge in a circular pipe flowing partially full with Manning "" as a function of water depth.1. The three reservoirs shown below are connected by commercial steel pipe (e=0.045mm.). Determine the flow rate in each pipe, assuming fully turbulent flow. Neglect minor losses. 므 clev. 80 B 4000 m 1.2 m J (elev. 0) w 8'09 000€ elev. 100 V A 5000 m 0.6 m elev. 70 7 C F5.30 A line source of strength 15x m/s is situated within a uniform stream flowing at -12 m/s (i.e. right to left). At a distance of 0.6 m downstream from the source is an equal sink. How far will the stagnation points be from the nearest source/ sink? (a) 0.38 m (b) 0.46 m (c) 0.52 m (d) 0.58 m