The critical
pressure ratio of a convergent nozzle is defined as the ratio of the :
अभिसारी नोजल के क्रांतिक दबाव अनुपात को निम्न के अनुपात के रूप में परिभाषित किया गया है:
inlet
pressure to the outlet pressure of the nozzle.
outlet
pressure to the inlet pressure of the nozzle only when mass flow rate per unit
area is minimum.
outlet
pressure to the inlet pressure of the nozzle.
outlet
pressure to the inlet pressure of the nozzle only when mass flow rate per unit
area is maximum.
outlet
pressure to the inlet pressure of the nozzle only when mass flow rate per unit
area is maximum.
●The critical
pressure ratio of a convergent nozzle is defined as the ratio of the outlet
pressure to the inlet pressure of the nozzle only when mass flow rate per unit
area is maximum.
●The critical
pressure ratio indicates the pressure ratio after which mass flow rate cannot
be increased further even if exit pressure is reduced. This occurs when Mach
number equals 1 at the minimum cross section.
Hence, the
correct option is (D).
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