Experimental measurements of density and OH radical concentration have been compared with a theory which predicts the concentrations of product and of a reactive intermediate in a plane premixed flame propagating into grid turbulence. The theory is based on the simplest version of the Bray and Libby
Experimental study on the configuration and propagation characteristics of premixed turbulent flame
โ Scribed by Hiroyuki Kido; Kenshiro Nakashima; Masaya Nakahara; Jun Hashimoto
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 352 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0389-4304
No coin nor oath required. For personal study only.
โฆ Synopsis
An attempt is made to examine the con"guration and propagation characteristics of premixed turbulent #ame in a weak turbulence region. A laser tomography technique is used to obtain the #ame shape, and quantitative analysis is performed. It is found that the turbulent #ame front can be classi"ed into the active and the inactive part for the #ame propagation, where the former is the convex part of #ame toward the unburned mixture and the latter is toward the burned gas. In this paper, the local burning velocity and the local #ame front curvature are determined directly by sequential #ame tomograms.
๐ SIMILAR VOLUMES
A microphone probe was developed whose frequency response was improved by damping organ-pipe resonance, and applied to the turbulence measurements in premixed turbulent flames of Bunsen-type. The time-mean values and fluctuating components of local dynamic pressure in flames were determined. Intermi
A detailed experimental investigation has been performed on the structures of five low-pressure CH4/O2/Ar flames at equivalence ratios of . Stable compounds, atoms and radicals have been monitored using molecular beam mass spectrometry (MBMS). The maximum mole fraction of CH 3 radicals is roughly si
The paper describes experiments in which high frequency electric fields were applied across flames generated by the action of laser-induced sparks. The objective of the study was to establish whether such fields affect the rates of flame propagation in mixtures at one atmosphere pressure of methane/