(Solved): Consider a supersonic Mach 4 flow over a double compression ramp. The first ramp angle is 1= ...

Consider a supersonic Mach 4 flow over a double compression ramp. The first ramp angle is ${\delta }_1={\varsigma }^{\circ }$ and the second is ${\delta }_2=10^{\circ }$ with respect to the free stream. At both compression comers a shock wave $(\mathrm{OSW}{\mathrm{W}}_{0t}$ and $\mathrm{OS}{\mathrm{W}}_{12})$ is generated and these shocks interact in point I. From the interaction a shock $\left({\mathrm{OSW}}_{03}\right)$ and a second wave (indicated by the dotted line) results. i. Sketch the flow field including shock waves, expansion waves, streamlines and sliplines. ii. Determine the angles of the shocks $OS{W}_{01},{\mathrm{OSW}}_{14}$ and ${\mathrm{OSW}}_{03\text{. }}$ ii. Determine the pressure in regions 2 and 3 and comment on the nature (compression or expansion) of the wave indicated by the dotted line