A converging nozzle expands air (R=287 J/kgK, k=1.4) and works with the following boundary conditions: p,-3 bar,T-350 K, p,1 bar.The air velocity at the nozzle outlet, cis:egnaO (a) 375.0 m/s759O (b) 320.5 m/s02751(C) 435.2 m/sO (d) 342.3 m/s A system is composed by two nozzles in series, which expand air (R=287 J/kgK, k=1.4).The upstream conditions of the first nozzle are: p, = 7.5 bar, T, =first nozzle there is an infinite capacity, in which p, = 1.4 bar. The second nozzle is fed by the capacityand discharges the flow at Pa450 K, c,=120 m/s. Downstream of the= 1 bar.Both nozzles work in design conditions. The throat area of the first nozzle is A,=14 cm".Determine:The mass-flow rate through the system;The outlet area, Au and the outlet velocity, coutr from the second nozzle.

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Answered: A converging nozzle expands air (R=287…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Problem 1.1MA

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A converging nozzle expands air (R=287 J/kgK, k=1.4) and works with the following boundary conditions.: P,=3 b. T,-350 K, P2= 1 bar. The air velocity at the nozzle outlet, c is: O (a) 375.0 m/s O (b) 320.5 m/s 759 OC) 435.2 m/s 262751 O (d) 342.3 m/s