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Under Contours of, choose Velocity.. and Mach Number. Select the Filled option. Increase the number of contour levels plotted: set Levels to 100
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![](/download/attachments/90740363/step6_033.jpg?version=1&modificationDate=1223412577000&api=v2)
Click Display.
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We see that the Mach number behind the shockwave is uniform and equal to 2.2. Compare this to the corresponding analytical result.
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