Air flows in a channel and exhausts to the atmosphere as shown in Figure 4. Note that the oblique shock just touches the upper corner. Determine M2 and P2 (a) Find the deflection angle S (b) (c) (d) What is the nature of the wave(s) form emanating from the upper corner and dividing regions 2 and 3? Compute M3, P3 and T3, and show the flow direction in region 3. 2.54cm M=2.28 ? 1 2 2.13cm P = 180kPa T = 335K 3