Question

2.4 Refer to the figure. Assume the elbow is horizontal and VI, P1, P2 and the diameters are as shown. What are the magnitude and direction of the net horizontal force on the elbow? The fluid is water. Include the pressure force. S elect Smaller on the tree surace or a mounction on the n amesto e tension mensional as to deve preton L W dieren Consider the inclined NON... and . m e m 0 Prob 3 P2 = 0 Section (2) 12 in. horizontal Water Section (1) P-15 psi V = 5ft/s

Answer 1

sof here, ut from the given assumption, the elbow as horizontal and VI, pl, Pa and the diameter are given. here, find the magnitude and direction of the net horizontal force on the elbow, i bini P = 15 psi . V Vi=5ftls wao Wate water. Now, the inecaur - momentum equation in y direction - Ry =o. :Yo y -Vyso Now in fox-direction is . P,A, - Rr & Pr A2 = m van mv, x P, AI - Rx+(03=C-vo)-(4) PIAI - Rx = (8 • A2 V2) (-6) (PAN), PiAr-Rx = -8A 2 V2² - S. An.vi?

Now Roa PIA, A Pani+P d2 Vo² Now, we can submit the values from the follerning figurer Re: 2160 x I., XC 15 +1.94(5.)(0-5}ed +(qu( ! )} 2160 x 1 +(1.94 X 68.5)(100)+(94) (25) 7 ( 2160 +(1.94)(2-7)(vec) + (14) 125)] ( 1160+ 1940+48.5J Posia juu Iblyer El Curuses] = 1890 Rox = 1890 It eft = 12 inch P = sau suglf13/ There are the known valul for the given doo solutions These are the required