| タイトル | High-Speed Linear Raman Spectroscopy for Instability Analysis of a Bluff Body Flame |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130009497 |
| 著者（英） | Kojima, Jun; Fischer, David |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2013-01-01 |
| 言語 | eng |
| 内容記述 | We report a high-speed laser diagnostics technique based on point-wise linear Raman spectroscopy for measuring the frequency content of a CH4-air premixed flame stabilized behind a circular bluff body. The technique, which primarily employs a Nd:YLF pulsed laser and a fast image-intensified CCD camera, successfully measures the time evolution of scalar parameters (N2, O2, CH4, and H2O) in the vortex-induced flame instability at a data rate of 1 kHz. Oscillation of the V-shaped flame front is quantified through frequency analysis of the combustion species data and their correlations. This technique promises to be a useful diagnostics tool for combustion instability studies. |
| NASA分類 | Fluid Mechanics and Thermodynamics |
| レポートNO | NASA/TM-2013-217832
E-18583 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/239095 |
