Three-dimensional investigation of the dynamics of a propane diffusion flame

被引：8

作者：

Wang, Qian ^{[1
]}

Yang, Jiansheng ^{[2
]}

Huang, Hua Wei ^{[2
]}

Zhang, Yang ^{[2
]}

Zhao, Changying ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China

[2] Univ Sheffield, Dept Mech Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

FUEL | 2014年 / 116卷

基金：

英国工程与自然科学研究理事会;

关键词：

Diffusion flame; Stereoscopic schlieren; 3D reconstruction;

D O I：

10.1016/j.fuel.2013.08.038

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The three-dimensional (3D) dynamics of a propane diffusion flame was investigated using high speed stereo imaging and a newly developed stereoscopic schlieren techniques. The laminar flame is kept at a flow rate of 0.3 slpm, which corresponds to a mean exit flow velocity of 0.30 m/s and a low Reynolds number at 300. The flame shows a typical flickering phenomenon at 11 Hz. The 3D dynamics of the visible flame and invisible hot gas bulge in an oscillating cycle is analyzed quantitatively. The 2D dynamics of the flame and hot gas was investigated based on direct and schlieren images. The in-depth information was obtained by stereoscopic technique and 3D reconstruction methods. It is found that both the visible flame and hot gas bulge has a rotating trend in space, which indicates that the visible flame dynamics is closely related to the hot gas outside. The successful application of 3D schlieren method on flame dynamics shows great potential in future combustion research. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：448 / 454

页数：7

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