Chemical Kinetics and Aerodynamics of Ignition
Abstract
This program investigates ignition of nonhomogenous systems, such as those found in practical combustion devices, by looking at ignition in a counterflow. During the reporting period, major effort was expanded on ignition in a nonpremixed turbulent counterflow where a hot air jet ignites an ambient temperature fuel jet. Specifically, the non-reacting turbulent flow was first investigated experimentally to provide data in support of other ignition and turbulence modeling studies. Subsequently, experiments were conducted to determine the ignition temperatures over a range of fuel concentrations, pressures, and strain rates. Preliminary modeling of turbulent ignition was also accomplished by first solving for the flow field using a Reynolds stress model and then solving for the chemistry by using a joint scalar PDF equation and Monte Carlo techniques. This two step approach is possible because of the small amount of heat release prior to ignition.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 19, 2001
- Accession Number
- ADP012103
Entities
People
- Chung K. Law
Organizations
- Princeton University