Basic Instability Mechanisms in Chemically Reacting Subsonic and Supersonic Flows.
Abstract
This report summarizes the main results and conclusions obtained in a research program on basic instability in chemically reacting subsonic and supersonic flows. Problems studied included (1) Nonlinear wave-kinetic interactions (2) Sustenance, structure and initiation of gaseous detonations (3) Sustenance of low-frequency instability in dump combustors (4) Onset of instability in reacting shear flows and (5) Temporal development of turbulence-combustion interactions. Both linear and nonlinear coupling between chemical kinetics and gas dynamics were found to play important roles in triggering and sustaining instabilities in these problems. Of special significance were the effects due to non-dimensional activation energy and Damkohler's similarity parameters and possible selective amplification within specific frequency bands as governed by chemical kinetics. Originator supplied keywords include: Instability Mechanisms; Wave-kinetic Interactions; Linear and Nonlinear Coupling; Sustenance, Structure and Initiation of Gaseous Detonations; Low-Frequency Instability in Dump Combustors; Onset of Instability in Reacting Shear Flows; Turbulence-Combustion Interactions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1983
- Accession Number
- ADA150920
Entities
People
- T. Y. Toong
Organizations
- Massachusetts Institute of Technology