Vendetta Final Proposal Part 1 (3.4 MB) - Cal Poly

0.990.980.97Pressure Recovery0.960.950.940.930.92Deflection Angle = 10.75Pressure Recovery = 0.97650.910.90.890 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15Flow Deflection AngleFigure 6.5 - Optimum Deflection Angle for Mach 1.6 FlowFinding the optimum deflection angle for a three shock inlet is more involved; therefore, a rough estimate of a sixdegree deflection angle followed by another 6 degree deflection angle was used to compare against the two shock inlet.The difference in on design pressure recovery is about 1%; however, the larger the deflection angles become the betterthe pressure recovery will become and the longer the inlet. The pressure recovery comparison can be seen in Figure 6.6.The military specification for inlets is given below and is represented in the graph.Mil Spec MIL-E-5008BηrSpec⎧ 1 M ≤ 1⎩1 0.075( 1) 1 50= ⎨ −1.35M0 − < M0