Question:

Steady, compressible flow of air takes place through an adiabatic converging- diverging nozzle, as shown in the figure. For a particular value of pressure difference across the nozzle, a stationary normal shock wave forms in the diverging section of the nozzle. If E and F denote the flow conditions just upstream and downstream of the normal shock, respectively, which of the following statement(s) is/are TRUE?
Steady, compressible flow of air takes place through an adiabatic converging- diverging nozzle

  • Static pressure at E is lower than the static pressure at F
  • Density at E is lower than the density at F
  • Mach number at E is lower than the Mach number at F
  • Specific entropy at E is lower than the specific entropy at F
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The Correct Option is A, B, D

Solution and Explanation

The correct option is (A): Static pressure at E is lower than the static pressure at F, (B): Density at E is lower than the density at F and (D): Specific entropy at E is lower than the specific entropy at F
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