Flame Acceleration and Transition to Detonation in High-Speed Turbulent Combustion
Abstract
The objective of this project is to address the grand-challenge question in combustion dynamics: How and under what circumstances does a flame propagating in a smooth channel accelerate to the point where there is a transition to detonation (DDT)? We are also asking: What are the specific physical mechanisms controlling this process? Work has progressed on five fronts: (1) Clarifying the route to DDT as the channel geometries change from large to small flow blockages ; (2) Finding the mechanism of DDT in small, smooth channels ; (3) Finding adequate and simplified models for chemical and diffusion processes for use in complex reactive-fluid-dynamics simulations of hydrocarbon combustion ; (4) Determining the effects of surface roughness on DDT; and (5) Determining the effects of acoustic-flame-boundary interactions in closed channels containing fuel-air mixtures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 21, 2016
- Accession Number
- AD1041605
Entities
People
- Elaine Oran
- Norman M. Wereley