Flow Characteristics in a Gas Dynamic Laser Type Multiple Nozzle-Diffuser Assembly.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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Schlieren photographs and pressure measurements were used to study the flow characteristics in a Mach 3.35 ideal multiple nozzle-diffuser assembly similar to that of a gas dynamic laser. The assembly consisted of 14 full nozzles with a half nozzle at each end of the array. Air at 80 deg. F and a maximum of 110 psig was passed through the nozzles into a constant area section and then through a convergent diffuser to ambient conditions. Boundary layer control was provided at each end of the test cavity by accelerating the boundary layer with nitrogen injected parallel to the end walls. A variety of single throat diffusers were used to start the test cavity.
- Lasers and Masers
- Fluid Mechanics