Click Solve from the Setup tab:
Questions about applying settings?
Click the Result quantities button.
Enable output of Mach Number by selecting Mach Number. Click OK.
On the Solve dialog, click Solution Control, and click Advection. On the Advection Options dialog, select ADV2. Click OK, and OK on the Solution Controls dialog.
Click the Physics tab.
Flow = On
Compressiblity = Compressible
Total Temp. = 500
Total Temp Unit = Kelvin
Click the Control tab.
Iterations to run = 1000
Click Solve to start the analysis.
We set the number of iterations to 1000 because internal compressible analyses require many iterations to converge.