Water at 40°C flows horizontally through a constrictionsimilar to that in Fig. S5.9 when the atmospheric pressure is715 mmiig. The gage reading is 35 kPa, d, -0.5 m, and d,-0.15 m. Neglecting head loss, find the flow rate at whichcavitation begins.10 pslThroatTable A.1 at 40°C: y - 9.731 KN/m',andaFigure S5.9

Given, Temperature of flow 40 C Pressure at section 1 , P1 = 35 KPa Diameter at section 1 , d1 =…

Water at 40°C flows horizontally through a constriction similar to that in Fig. S3.9 when the atmospheric pressure is 715 mmig. The gage reading is 35 kPa, d, -0.5m, and d, -0.15 m. Neglecting head los, find the flow rate at which cavitation begins. Throat 1da Table A.I at 40°C: y - 9.731 kN/m², anda Figure S5.9

Water at 40°C flows horizontally through a constriction similar to that in Fig. S3.9 when the atmospheric pressure is 715 mmig. The gage reading is 35 kPa, d, -0.5m, and d, -0.15 m. Neglecting head los, find the flow rate at which cavitation begins. Throat 1da Table A.I at 40°C: y - 9.731 kN/m², anda Figure S5.9

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 uniform water stream, U∞ = 20 m/s and ρ = 998 kg/m3,combines with a source at the origin to form a half-body. At(x, y) = (0, 1.2 m), the pressure is 12.5 kPa less than p∞. (a) Isthis point outside the body? Estimate (b) the appropriatesource strength m and (c) the pressure at the nose of the body.
A soda straw is 20 cm long and 2 mm in diameter. It deliverscold cola, approximated as water at 10°C, at a rate of 3 cm3/s.(a) What is the head loss through the straw? What is the axialpressure gradient ∂ p/∂ x if the flow is (b) vertically up or(c) horizontal? Can the human lung deliver this much flow?
A uniform stream, U∞ = 4 m/s, approaches a Rankine ovalas in Fig. with a = 50 cm. Find the strength m of thesource-sink pair, in m2/s, which will cause the total lengthof the oval to be 250 cm. What is the maximum width ofthis oval?
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.
An engineer claims that the flow of SAE 30W oil, at 20 °C,through a 5-cm-diameter smooth pipe at 1 million N/h, islaminar. Do you agree? A million newtons is a lot, so thissounds like an awfully high flow rate.
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
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?
In Fig. , free discharge, a gate opening of 0.72 ft willallow a fl ow rate of 30,000 gal/min. Recall y1 = 6 ft and thegate width b = 8 ft. Suppose that the gate is drowned with y2 = 4 ft. What gate opening wouldthen be required?
A water jet 7.6 cm diameter strikes concrete (SG=2.3) slab which rests freely on a lever floor. If the slab is 30.5 cm wide into a paper, calculate the jet velocity which will just begin to tip the slab over.
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.
An engineer needs to monitor a flow of 20°C gasoline atabout 250 ±25 gal/min through a 4-in-diameter smoothpipe. She can use an orifice plate, a long-radius flow nozzle,or a venturi nozzle, all with 2-in-diameter throats. Theonly differential pressure gage available is accurate in therange of 6 to 10 lbf/in2. Disregarding flow losses, whichdevice is best?
A fi reboat pump delivers water to a vertical nozzle with a3:1 diameter ratio, as in Fig. . If friction is neglectedand the fl ow rate is 500 gal/min, how high will the outletwater jet rise?( a ) 2.0 m, ( b ) 9.8 m, ( c ) 32 m, ( d ) 64 m, ( e ) 98 m