The jet of water strikes a fixed curved surface tangentially at a velocity of 40 m/s from a nozzle of 40 mm diameter and leaves at an angle of 30° from horizontal as shown in Fig. P. 4.4.11. Find: (i) Mass flow rate of water. (ii) Force in (X-X) direction. (iii) Force in (Y-Y) direction. (iv) Resultant force on curved surface. V sine V cose Fig. P. 4.4.11

The jet of water strikes a fixed curved surface tangentially at a velocity of 40 m/s from a nozzle of 40 mm diameter and leaves at an angle of 30° from horizontal as shown in Fig. P. 4.4.11. Find: (i) Mass flow rate of water. (ii) Force in (X-X) direction. (iii) Force in (Y-Y) direction. (iv) Resultant force on curved surface. V sine V cose Fig. P. 4.4.11

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A jet of water of diameter 60 mm strikes a stationary flat plate normally at a velocity of 26 m/s. What is the force exerted by the jet of water? Select one: a. 1,911.3 N b. 1,756.4 N c. 1,561.6 N d. 1,722.1 N
Water enters a rotating lawn sprinkler at a steady rate of 16 gal/min. The exit cross-sectional area of each of the two nozzles is 0.04 in2 and the flow leaving is tangential. The radius from the axis of rotation to the centerline of each nozzle is 8 in. (a) determine the resisting torque required to hold the sprinkler head stationary (b) determine the resisting torque associated with a sprinkler rotating at a constant 500 rpm (c) determine the angular velocity of the sprinkler if there is no resisting torque (ans: (a) 2.96 ftlb (b) 1.35 ftlb (c) 920 RPM
A large lawn sprinkler with two identical arms is used to generate electric power by attaching a generator to its rotating head. Water enters the sprinkler from the base along the axis of rotation at a rate of 5 gal/s and leaves the nozzles in the tangential direction. The sprinkler rotates at a rate of 180 rpm in a horizontal plane. The diameter of each jet is 0.5 in, and the normal distance between the axis of rotation and the center of each nozzle is 2 ft. Determine the maximum possible electrical power produced.
A large lawn sprinkler with two identical arms is used to generate electric power by attaching a generator to its rotating head. Water enters the sprinkler from the base along the axis of rotation at a rate of 5 gal/s and leaves the nozzles in the tangential direction. The sprinkler rotates at a rate of 180 rpm in a horizontal plane. The diameter of each jet is 0.5 in, and the normal distance between the axis of rotation and the center of each nozzle is 2 ft. If the rotating head is somehow stuck, determine the moment acting on the head.
A jet of water having a velocity of 30 m/s strikes a series of radial curved vanes mounted on a wheel which is rotating at 300 rpm. The jet makes an angle of 30 ∘ with the tangent to the wheel at inlet and leaves the wheel with a velocity of 4 m/s at an angle of 120 ∘ to the tangent to the wheel at outlet. Water is flowing from outward in a radial direction. The outer and inner radii of the wheel are 0.6 m and 0.3 m respectively. Determine: (a) Vane angles at inlet and outlet , (b) Work done per second per kg of water, and (c) Efficiency of the wheel.
Gas enters the nozzles of an axial flow turbine stage with uniform total pressure at a uniformvelocity c1 in the axial direction and leaves the nozzles at a constant flow angle α2 to theaxial direction. The absolute flow leaving the rotor c3 is completely axial at all radii. Using radialequilibrium theory and assuming no losses in total pressure show that where Um is the mean blade speed, cθm2 is the tangential velocity component at nozzle exit at themean radius r 1⁄4 rm. (Note: The approximate c3 1⁄4 c1 at r 1⁄4 rm is used to derive this expression.)
A semi-infinite body is constructed from a uniform flow with velocity V∞ and a source with strength Λ = 879 m2/s at the origin. The stagnation point on the body is located at location (r,θ) = ( 13.8 m, π ). Determine the uniform flow velocity V∞, the coordinates (x, y), and the velocity components (Vx, Vy) at a point on the surface of the body with θ = 2 rad. V∞ = ___ m/s x = ___ my = ___m Vx = ____m/sVy = ____m/s
A jet of water with velocity 35 m/s strikes a series of radial curved vane mounted on a wheel which is rotating at 200 rpm. The jet makes an angle 30° with the tangent to the wheel at inlet, and leaves the wheel with a velocity 5 m/s at angle of 140° to the tangent to the wheel at the outlet. The outer and inner radii of the wheel are 70 cm and 35 cm, respectively. A. Determine the Inlet Vane Angle, in degrees. B. Determine the Outlet Vane Angle, in degrees. C. Determine the work done per unit weight of water, in Newton-Meter per Newton.
A fluid moves in a steady flow manner between two sections in a flow line. At the entrance section: A1, -1 m2, V = 0.5 m/s, P1 = 4 kg/m2. At the exit section: Az =0.2 m2, v 2 = 0.20 m®/kgm. Calculate (a) the mass flow rate in kg/s and (b) the speed at section 2 in m/s.
A Francis radial-flow hydroturbine has the following dimensions, where location 2 is the inlet and location 1 is the outlet: r2 = 6.60 ft, r1 = 4.40 ft, b2 = 2.60 ft, and b1 = 7.20 ft. The runner blade angles are ?2 = 82° and ?1 = 46° at the turbine inlet and outlet, respectively. The runner rotates at n. = 120 rpm. The volume flow rate at design conditions is 4.70 ×106 gpm. Irreversible losses are neglected in this preliminary analysis. Calculate the angle ?2 through which the wicket gates should turn the flow, where ?2 is measured from the radial direction at the runner inlet. Calculate the swirl angle ?1, where ?1 is measured from the radial direction at the runner outlet. Does this turbine have forward or reverse swirl? Predict the power output (hp) and required net head (ft).
Express the unsteady angular momentum equation in vector form for a control volume that has a constant moment of inertia I, no external moments applied, one outgoing uniform flow stream of velocity V→, and mass flow rate m. .
A jet of water with velocity 35 m/s strikes a series of radial curved vane mounted on a wheel which is rotating at 200 rpm. The jet makes an angle 30° with the tangent to the wheel at inlet, and leaves the wheel with a velocity 5 m/s at angle of 140° to the tangent to the wheel at the outlet. The outer and inner radii of the wheel are 70 cm and 35 cm, respectively. A. Determine the Inlet Vane Angle, in degrees.