Mixing, Chemical Reactions, and Combustion in Subsonic and Supersonic Turbulent Flows
Abstract
Research conducted under sponsorship of this grant focused on fundamental investigations of mixing, chemical-reaction, and combustion processes, in turbulent, subsonic, and supersonic flows. Research on hydrocarbon-combustion extended previous work highlighting deficiencies in existing chemical-kinetics models for ethylene combustion. Experiments in the 2- and 3-D structure and mixing of turbulent transverse jets yielded new results on isotropy and Reynolds number effects. Work in high-speed flows and subsonic-diffusers demonstrated considerable control via mass injection. Direct numerical simulations of Rayleigh-Taylor instability flows attained the highest Reynolds numbers to date yielding results on mixing and over-all growth rates. Image Correlation Velocimetry was applied to free jets and OH-tagged lines. Advances in high-performance digital-imaging systems were implemented, permitting high frame-rate and high-resolution multi-dimensional data acquisition in many of the experiments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 28, 2001
- Accession Number
- ADA394530
Entities
People
- Anthony Leaonard
- Paul E. Dimotakis
Organizations
- California Institute of Technology