Lecture
This lecture introduces the concept of isentropic flows and their application in supersonic wind tunnels and rocket nozzles. It explores the performance advantages of convergent-divergent nozzles, from Gustave de Laval's discovery to modern-day applications in rockets like the Saturn V and Space Launch System. The lecture also covers the importance of variable geometry nozzles in achieving supersonic flow, as seen in aircraft like the F16 and F15. Additionally, it discusses the conditions required for supersonic flow and the use of scotch tape to visualize Mach waves in supersonic flows.