Flameout and Acoustic Damping in Pulsed Chemical Lasers
Final technical rept.
AVCO EVERETT RESEARCH LAB INC EVERETT MA
Pagination or Media Count:
The objective of this program was to address the acoustic damping issue of a repetitively-pulsed atmospheric pressure pulsed chemical laser. For this purpose a device, one meter in size parallel to the optical axis, was designed and constructed. To achieve flameout 80 fluidic devices were used to control the hydrogen flow. A new mixer was fabricated to obtain the required medium quality using a photochemical machining technique. For the acoustic quieting a heat exchanger was used to reduce the acoustic reflection of the hot- cold gas interfaces, and a muffler type acoustic absorber was constructed for acoustic energy attenuation. The results of a limited test period have been described.
- Lasers and Masers
- Fluid Mechanics