Investigation of Combustion in Large Vortices.
Abstract
The investigations of non-steady and unstable combustion in a dump combustor have been completed. The large amplitude driving mechanism centers on the periodic formation and combustion of a large vortex, the phase of heat release being governed by both gas dynamic and chemical delay times. This mechanism is now very well understood, both in principle and in quantitative detail. These results make it a prime candidate for investigations into active control of unstable combustion. The unsteady combustion facility is now being modified to study the details of combustion processes in large vortices utilizing a CID image intensified camera and an LDV for velocity measurements in the hot gas. This study constitutes an essential element in a larger study of shock enhancement for combustion of hydrogen in supersonic burners. Keywords: Unsteady combustion; Vortex burning; Pressure oscillations; Combustion instability.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 12, 1987
- Accession Number
- ADA190406
Entities
People
- Frank E. Marble
Organizations
- California Institute of Technology