Analysis of non-reacting spray and its correlation to combustor ignition/lean blow out performance
Abstract
Observance and measurements are conducted with confined and unconfined sprays to characterize the downstream aerodynamic flow field and droplet size/mass distribution. Various airblast injector and combustor swirl cup geometries were evaluated in order to distinguish the effect of nonreacting spray characteristics on combustor ignition and lean extinction limits. The resulting spray distribution patterns, as influenced by the combustor dome air flow field, were correlated with combustor flame shape and stability performance. It was found that a correlation between nonreacting and reacting spray in a combustor dome environment can be consistently demonstrated.
- Publication:
-
AIAA, SAE, ASME, and ASEE, 26th Joint Propulsion Conference
- Pub Date:
- July 1990
- Bibcode:
- 1990jpof.confT....L
- Keywords:
-
- Air Flow;
- Combustion Chambers;
- Flow Distribution;
- Fuel Sprays;
- Ignition Systems;
- Density Distribution;
- Flame Propagation;
- Flow Velocity;
- Fuel Injection;
- Swirling;
- Fluid Mechanics and Heat Transfer