DOI: 10.1080/00102202.2019.1566226
论文题名: Improvement of Turbulent Burning Velocity Measurements by Schlieren Technique, for High Pressure Isooctane-Air Premixed Flames
作者: Brequigny P. ; Endouard C. ; Foucher F. ; Mounaïm-Rousselle C.
刊名: Combustion Science and Technology
ISSN: 102202
出版年: 2020
卷: 192, 期: 3 语种: 英语
英文关键词: isooctane-air mixture
; spherical expanding flame
; Turbulent flame speed
Scopus关键词: Combustion
; Mixtures
; Paraffins
; Polyols
; Spheres
; Air mixtures
; Constant-volume vessel
; spherical expanding flame
; Turbulence flow fields
; Turbulent burning velocities
; Turbulent flame speed
; Turbulent intensities
; Turbulent premixed flame
; Air
英文摘要: As in most industrial cases, the expansion of premixed flames in spark-ignition (SI) engines is strongly affected by turbulence flow fields. However, as the flame radius and curvature are non-negligible during combustion development, the global stretch effect can drastically change the turbulent flame propagation speed. In this paper, spherical turbulent premixed flames were studied inside a constant-volume vessel for a wide range of air-isooctane mixtures, initial turbulent intensities and pressures by using simultaneously Mie scattering tomography and 2-View Schlieren imaging. The comparison between different radii enabled non-convected flames with a global spherical shape to be selected and the validity of a correction factor, first introduced by Bradley et al., was assessed. A set of turbulent flame speeds was obtained and the evolution as a function of the global stretch rate was analyzed. Various turbulent flame speed definitions were also evaluated on two different datasets. © 2019, © 2019 Taylor & Francis. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158751
Appears in Collections: 气候变化与战略
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作者单位: University of Orléans, INSA-CVL, PRISME, EA 4229, Orléans, France
Recommended Citation:
Brequigny P.,Endouard C.,Foucher F.,et al. Improvement of Turbulent Burning Velocity Measurements by Schlieren Technique, for High Pressure Isooctane-Air Premixed Flames[J]. Combustion Science and Technology,2020-01-01,192(3)