Engineering, 15.11.2019 04:31 samgirl2000
Air at 3.4 bar, 530 k, and a mach number of 0.4 enters a converging-diverging nozzle operating at steady state. a normal shock stands in the diverging section at a location where mach number is mx = 1.8. the flow is isentropic, except where the shock stands. the air behaves as an ideal gas with k = 1.4. d determine (a) the stagnation temperature tox, in k. (b) the stagnation pressure po, in bar (c) the pressure p, in bar (d) the pressure py, in bar (e) the stagnation pressure poy, in bar (f) the stagnation temperature toy, in k. (g) if the throat area is 7.6x10 m2, and the exit plane pressure is 2.4 bar, determine the mass flow rate, in kg/s, and the exit area, in mt answerl (a) 547.0k; (b) 3.796 bar; (c) 0.6607 bar; (d) 2.387 bar; (e) 3.086 bar; (f) 547.0k; (g) 0.498 kg/s and 10.99x10* m2.
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Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
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Engineering, 04.07.2019 18:10
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k
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Engineering, 04.07.2019 18:20
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
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Air at 3.4 bar, 530 k, and a mach number of 0.4 enters a converging-diverging nozzle operating at st...
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