Abstract
New measurements are reported of the soot-temperature interaction in a turbulent non-premixed ethylene-hydrogen-nitrogen attached jet flame with an exit Reynolds number of 15,000. Spatially resolved, two-dimensional temperature and soot volume fractions were measured simultaneously using non-linear excitation regime two-line atomic fluorescence (NTLAF) and laser-induced incandescence (LII) techniques, respectively. The soot-temperature correlation is presented and analyzed through representative images of single-shot simultaneous temperature and soot volume fraction at various heights, as well as through joint probability density functions (PDFs) of soot volume fraction (SVF) and temperature. A strong influence of temperature on SVF is found, which is consistent with current understanding of their inter-dependence. Axial and radial plots of mean SVF categorized into temperature bands of 300 K are also reported. These reveal that, while the mean SVF is a function of both temperature and axial distance, the joint PDF depends only weakly on radial distance. The study highlights the value of the simultaneous measurements for understanding soot behavior in a turbulent environment and for model development and validation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1931-1938 |
| Number of pages | 8 |
| Journal | Proceedings of the Combustion Institute |
| Volume | 35 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 1 2015 |
| Externally published | Yes |
Bibliographical note
Generated from Scopus record by KAUST IRTS on 2022-09-12ASJC Scopus subject areas
- General Chemical Engineering
- Mechanical Engineering
- Physical and Theoretical Chemistry