A pipe with a diameter of 0.2 m has supersonic flow entering at a Mach number of 4.0. There is a disturbance that causes the flow to have a normal shock between state 1 and state 2. In this portion of the pipe please assume, friction-less with no heat addition. After going through the normal shock, the flow is then accelerated to a Mach number of 0.8 (M3). Required:
Compare and contrast the ability to accelerate the flow through friction vs. heat addition to state 3.