Find the greatest back pressure

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Reference no: EM131515219

Question: A converging-diverging nozzle is supplied with air at a total pressure of 250 psi. The area of the throat is 0.1 in². The exit area is 1.6 in². Find the following (use of the nearest values in tables is acceptable):

(a) The greatest back pressure for which the throat is choked.

(b) The one value of the back pressure for perfect supersonic expansion.

Use these back pressures to determine:

(a) The range of back pressures for which a shock exists in the nozzle.

(b) The range of back pressures for which the flow is overexpanded.

Reference no: EM131515219

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