Time-dependent nozzle and base flow/cavity model of CW chemical laser flow fields
Abstract
A detailed calculation of the flow emerging from the primary (fluorine) and secondary (deuterium) nozzles into the cavity base region of a deuterium fluoride (DF) continuous wave (CW) chemical laser is examined. A two-dimensional time-dependent numerical method (APACHE) is described, predicting characteristic flow behavior from the nozzle throats into the cavity. Data indicate that the initial mixing has been controlled by the pressure mismatch between the primary and secondary nozzles, with diffusional processes affecting the flow thereafter. All primary and secondary variables pertaining to the flowfield are described by contour, profile, and carpet plots. The trip jets perturbation of the flowfield is noted.
- Publication:
-
AIAA, 16th Thermophysics Conference
- Pub Date:
- June 1981
- Bibcode:
- 1981thph.confV....R
- Keywords:
-
- Base Flow;
- Chemical Lasers;
- Computerized Simulation;
- Continuous Wave Lasers;
- Flow Distribution;
- Laser Cavities;
- Time Dependence;
- Boundaries;
- Density Distribution;
- Mach Number;
- Nozzle Flow;
- Temperature Profiles;
- Two Dimensional Flow;
- Velocity Distribution;
- Lasers and Masers