Question

Problem 1: "A plane jet of water strikes a splitter vane and divides into two flat streams as shown in the picture. You are asked to find a) the mass flow ratio, $m_2/m_3$, required to produce zero net force in vertical direction on the splitter vane, b) the horizontal force that must be applied under these conditions to maintain the vane motion at steady speed of 10m/s." m2 A = 7.85 \times 10^{-5} m^2 U = 10.0 m/s V = 25.0 m/s $\theta = 30^\circ$ Problem 2: "Air enters the fan shown in the figure at purely radial velocity, $V_1$. The blade discharge angle is 30° measured with respect to the tangential direction at the outside diameter of the rotor. Find: a) What would be a reasonable blade inlet angle; b) Find the power required to run the fan." 30° Q = 270 m³/s 1/25 L

          Problem 1: "A plane jet of water strikes a splitter vane and divides into two flat streams as shown in the
picture. You are asked to find a) the mass flow ratio, $m_2/m_3$, required to produce zero net force in
vertical direction on the splitter vane, b) the horizontal force that must be applied under these
conditions to maintain the vane motion at steady speed of 10m/s."
m2
A = 7.85 \times 10^{-5} m^2
U = 10.0 m/s
V = 25.0 m/s
$\theta = 30^\circ$
Problem 2: "Air enters the fan shown in the figure at purely radial velocity, $V_1$. The blade discharge
angle is 30° measured with respect to the tangential direction at the outside diameter of the rotor. Find:
a) What would be a reasonable blade inlet angle;
b) Find the power required to run the fan."
30°
Q = 270 m³/s
1/25
L

Problem 1: "A plane jet of water strikes a splitter vane and divides into two flat streams as shown in the
picture. You are asked to find a) the mass flow ratio, m2/m3, required to produce zero net force in
vertical direction on the splitter vane, b) the horizontal force that must be applied under these
conditions to maintain the vane motion at steady speed of 10m/s."
m2
A = 7.85 ×10^-5 m^2
U = 10.0 m/s
V = 25.0 m/s
θ = 30^∘
Problem 2: "Air enters the fan shown in the figure at purely radial velocity, V1. The blade discharge
angle is 30° measured with respect to the tangential direction at the outside diameter of the rotor. Find:
a) What would be a reasonable blade inlet angle;
b) Find the power required to run the fan."
30°
Q = 270 m³/s
1/25
L

Added by James H.

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