Question

2 2. (10 points) A stream of air (with unknown density) from a 2 cm diameter norrle strikes a curved vane as shown in the figure. A Pinot be connected to a water-filled U-tube manometer is placed in the air jet. Calculate the force (horisontal and vertical) exerted in the vane by jet. Assume incompressible and inviscid flow Stagnation dia Open L air jet Wate w 30 2 Sabato BB DE OD Ten un ♡ Esby dia de mucho sexo BOB ESPONJA

Answer 1

(1 Solution Air d-roun G 100ml It Open water- © Refference axis O 130 we, Bernoulis equeation between point (in -Atmospheric condition se R so Blog N2 o t f 738 +420 + Hy 30 29 ag pressure of the point ® ad point oor open point pressure will be equal, because their are in equilibrium condition. j HIL le V2 = √2gHi = √2gH % = %= Vm= √2gH Co [ H - 11 2 VO 28

2 1 ) Smin Where Hent Smax he Utube reading if flow down ware. Smin an Smax Nou Here flow is downward -1) Smin h ie H= n(Smare I = 0.1/ 1000 1.2 -1) = 83.233 Now, from ean 40 411 m/s 2 x 9.81 X 83.233 Now roben/wed use, momentum change eath Af my muf. Sal Reivi - RV) AF = SA (NZ 1 t [:~f=0 ie DF = SAV 11

From 11 F- Pair Avi? F fair Avin: 1:2 X0.785 X0.02.X0-02 X40.411 X 40.411 C 0.615 N Now Arc to given triangle, re F-0.615 N 60 V FS1n30 1300 t F Cosao il Fuertical force: Fsingo - 0.615X Sın 30 20.308 N cd FHorizantal torce: F CS30 = 0.615XL0730 = 0.533 N
All units has used in S.I