Dealing with Reflected Shocks

So, can shocks reflect off walls like light?!!! Kind of? Shock waves are not a physical phenomena. They don't have a mass or momentum. Shocks arise because our flow must be turned and this is how nature does it. So, if we have an oblique shock that turns our flow away from one boundary but towards another, we will end up with a reflected shock. This acts something like the bumpers at a bowling alley. It will continually turn the flow away from the wall. To show this, we will try out a problem and go through all the different angles.