Planar Thermometry in Sooting Transient Diffusion Flames
Abstract
Recent computational and experimental studies have shown that conditions exist where the assumption that flamelets respond quasi-steadily to the unsteady strain rates of the turbulent flow-field is invalid. If the turbulent Reynolds number is sufficiently large, there exists a range of eddy sizes where the characteristic turnover times of the smallest eddies are comparable to the diffusion times of the laminar flamelets. This also leads to a wide range of characteristic frequencies. Therefore, it is necessary to investigate the frequency response of flamelets to extend the applicability of the flamelet model. The purpose of this investigation was to quantify the response of the reaction-zone temperature and thickness and the strain rate to a time varying flow field.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 19, 2001
- Accession Number
- ADP012125
Entities
People
- William Roberts
Organizations
- North Carolina State University