An incompressible fluid flows past an impermeable flat plate, as in Fig. . , with a uniform inlet profile u = U, and a cubic polynomial exit profile (3η - η' where n= 2 Compute the volume flow Q across the top surface of the control volume. Ug у 3б Q? Uo y=0 CV Cubic Solid plate, width b into paper

Question 2 //25 Q (a) In figure below the flowing fluid is Helium at 20°C. D2 =6 cm D1=10 cm Neglect losses. If pl = 1400 kPa and the manometer fluid is Meriam red oil (SG = 0.827), estimate (a) p2 and (b) the gas flow rate in m/s. R for Helium is R= 2.0769 kJ/kg/K. 0,827 1000 20+273= 293 1400 = 230 2,0769.298 Hel BT 8 cm Heliom contr 1900 - (9,81/0) 8,27 -2,30) = 932=G Q=AV,9 Q= %3D

6) Air flow though the device shown in figure. Select which set of the following conditions is TRUE assuming incompressible non-viscous steady flow (a) p4 v3 (c) p2>p3; v2 > v3 (e) p4> pl; v4 pl; v1 > v3 (d) p4 vl "OUT

A water diffuser is constructed like that in the figure below. Diffuser wall 2 m Flow Entrance 7 m Exit The volumetric flow rate at the entrance (per meter depth into the plane of the image) is 14.0 m2/s and the pressure difference Pexit - Pentrance = 350 kPa. What is the expansion angle in degrees? i