Engineering, 27.09.2019 23:30 ugum
Design a supersonic nozzle to operate at 10 km altitude with an area ratio of 8.0. for the hot gas take to = 3000 k, r = 378 j/kg-k and k = 1.3. determine the exit mach number, exit velocity, and exit temperature, as well as the chamber pressure. if this chamber pressure is doubled, what happens to the thrust and the exit velocity? assume no change in gas properties. how close to optimum nozzle expansion is this nozzle?
Answers: 3
Engineering, 04.07.2019 18:10, johnthienann58
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
Engineering, 04.07.2019 18:10, redrosesxx
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
Answers: 3
Engineering, 04.07.2019 19:20, mads000
Determine (a) the maximum thermal efficiency of reversible power cycles operating between a hot reservoir at 1000°c and a cold reservoir at 200°c and (b) the maximum cops for reversible refrigeration and heat pump cycies, respectively, between 28°c and 14°c.
Answers: 1
Design a supersonic nozzle to operate at 10 km altitude with an area ratio of 8.0. for the hot gas t...
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