Experimental investigation on the effects of swirling flow on augmentor performance
Abstract
This paper describes an investigation on the effect of centrifugal force distributions on swirl augmentor performance. The experiments were conducted on the flow drag, temperature-distribution efficiency in the swirl augmentor model with different tangential velocity profiles. Four tangential velocity distributions considered are the Rankine vortex, forced vortex, free vortex, and the constant-angle vortex. The results show that the flow drag of the Rankine vortex swirler is the smallest one, and, in a swirl augmentor where flame is stabilized by using centrifugal force, the combustion efficiency can reach 90 percent or over, though the swirl number is low (S = 0.25).
- Publication:
-
Journal of Propulsion Technology
- Pub Date:
- June 1991
- Bibcode:
- 1991JPT.........36T
- Keywords:
-
- Afterburning;
- Centrifugal Force;
- Combustion Physics;
- Force Distribution;
- Swirling;
- Vortices;
- Augmentation;
- Combustion Efficiency;
- Fluid Mechanics and Heat Transfer