$8.$ Consider a normal shock wave propagating into stagnant air where the ambient temperature is $300$ K $.$ The pressure ratio across the shock is $10.$ Calculate the shock wave velocity, the

GAS DYNAMICS

velocity of the induced mass motion behind the shock wave, and the temperature ratio across the wave, using

a$)$ the equations of this section and

b$)$ the tabulated numbers in Table A$.2($see Appendix A$).$ Compare the two sets of results.

c$)$ Calculate the change in total enthalpy across the moving shock wave