Effects of Energetic Additives on Combustion Dynamics
Abstract
Energetic additives offer the possibility of increased performance of rocket engines. For hydrocarbon-fueled rocket engines, however, increased performance tends to be associated with increased severity of combustion instability. An exploration of the role of fuel and flame chemistry on combustion instabilities in liquid rocket engines is presented, with the goal of determining whether changes in the fuel energy content and flame speed can improve combustion stability. A limited set of experiments, analyses, and computations were conducted. In summary, it was determined that JP-8 and ethanol drops loaded with nano-Al additives burned differently. An exploratory computational study using Large Eddy Simulation indicated that faster-burning fuels actually increased stability. Experiments in a model rocket combustor indicated that there are coupled effects including injector flow dynamics and chemistry.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 19, 2010
- Accession Number
- ADA524505
Entities
People
- S. Son
- William Anderson
Organizations
- Purdue University