4.) A horizontal water jet issues into the atmosphere from a flow in a pipe at P, = 0.5 atm and diameter D, 2 cm, through an exit nozzle of diameter D, = 4 mm, before striking a vertical plate. A pitot tube measures the water pressure at the point of impact on the plate thru a small hole. The manometer is open at the top and fills with water to height h, on top of which is a layer of heavy fluid (SG = 20) of height 20 cm. (a.) What is the jet speed at the nozzle exit? (b.) What is the manometer height of water, h, below the heavy fluid layer? ot=95 20om dg-0.5atm %3D

4.) A horizontal water jet issues into the atmosphere from a flow in a pipe at P, = 0.5 atm and diameter D, 2 cm, through an exit nozzle of diameter D, = 4 mm, before striking a vertical plate. A pitot tube measures the water pressure at the point of impact on the plate thru a small hole. The manometer is open at the top and fills with water to height h, on top of which is a layer of heavy fluid (SG = 20) of height 20 cm. (a.) What is the jet speed at the nozzle exit? (b.) What is the manometer height of water, h, below the heavy fluid layer? ot=95 20om dg-0.5atm %3D

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 mine ventilation fan, running at 295 r/min, delivers500 m3/s of sea-level air with a pressure rise of 1100 Pa.Is this fan axial, centrifugal, or mixed? Estimate its diameterin ft. If the fl ow rate is increased 50 percent for thesame diameter, by what percentage will the pressure risechange?
An air tank of volume 1.5 m3 is initially at 800 kPa and20 °C. At t = 0, it begins exhausting through a convergingnozzle to sea-level conditions. The throat area is 0.75 cm2.Estimate (a) the initial mass flow in kg/s, (b) the timerequired to blow down to 500 kPa, and (c) the time atwhich the nozzle ceases being choked.
Water fl owing in a smooth 6-cm-diameter pipe entersa venturi contraction with a throat diameter of 3 cm.Upstream pressure is 120 kPa. If cavitation occurs in thethroat at a fl ow rate of 155 gal/min, what is the estimatedfl uid vapor pressure, assuming ideal frictionless fl ow?( a ) 6 kPa, ( b ) 12 kPa, ( c ) 24 kPa, ( d ) 31 kPa, ( e ) 52 kPa
Ethanol at 20°C flows at 125 U.S. gal/min through a horizontalcast iron pipe with L= 12 m and d = 5 cm. Neglecting entranceeffects, estimate (a) the pressure gradient dp/dx, (b) thewall shear stress τw, and (c) the percentage reduction in frictionfactor if the pipe walls are polished to a smooth surface.
Assume an inviscid, incompressible flow. Also, standard sea level density and pressure are 1.23 kg/m3 (0.002377 slug/ft3) and 1.01 × 105 N/m2 (2116 lb/ft2), respectively. Consider a venturi with a throat-to-inlet area ratio of 0.8, mounted on theside of an airplane fuselage. The airplane is in flight at standard sea level.If the static pressure at the throat is 2100 lb/ft2, calculate the velocity ofthe airplane.
Carbon dioxide flows through an insulated pipe 25 m longand 8 cm in diameter. The friction factor is 0.025. At theentrance, p = 300 kPa and T = 400 K. The mass flow is1.5 kg/s. Estimate the pressure drop by (a) compressibleand (b) incompressible = flow theory. (c) For whatpipe length will the exit flow be choked?
Assume an inviscid, incompressible flow. Also, standard sea level density and pressure are 1.23 kg/m3 (0.002377 slug/ft3) and 1.01 × 105 N/m2 (2116 lb/ft2), respectively. Consider a venturi with a small hole drilled in the side of the throat. Thishole is connected via a tube to a closed reservoir. The purpose of theventuri is to create a vacuum in the reservoir when the venturi is placed inan airstream. (The vacuum is defined as the pressure difference below theoutside ambient pressure.) The venturi has a throat-to-inlet area ratio of0.85. Calculate the maximum vacuum obtainable in the reservoir when theventuri is placed in an airstream of 90 m/s at standard sea level conditions.
Two water tanks, each with base area of 1 ft2, are connectedby a 0.5-in-diameter long-radius nozzle as in Fig. .If h = 1 ft as shown for t = 0, estimate the time for h(t) todrop to 0.25 ft.
Water at 20 °C flows through an inclined 8-cm-diameterpipe. At sections A and B the following data are taken:pA = 186 kPa, VA = 3.2 m/s, zA = 24.5 m, and pB = 260kPa, VB = 3.2 m/s, zB = 9.1 m. Which way is the flow going?What is the head loss in meters?
A pipe connecting two reservoirs, as in Fig., containsa thin-plate orifice. For water flow at 20°C, estimate(a) the volume flow through the pipe and (b) the pressuredrop across the orifice plate.
The 35°C water flow of the Figure below discharges to sea-level standard atmosphere. Neglecting losses, for what nozzle diameter D will cavitation begin to occur?
SAE 50W oil at 20 °C flows from one tank to anotherthrough a tube 160 cm long and 5 cm in diameter. Estimatethe flow rate in m3/hr if z1 = 2 m and z2= 0.8 m.