IMECH-IR  > 高温气体动力学国家重点实验室
3D measurements of swirling flame heat release rate based on CH chemiluminescence
Wang KL(王宽亮)1,2; Kang GJ(康国健)3; Li F(李飞)1; Yu XL(余西龙)1,2
Source Publication5th International Symposium on Laser Interaction with Matter, LIMIS 2018, November 11, 2018 - November 13, 2018
2018-11
Conference NameThe International Society for Optical Engineering, v 11046, 2019, Fifth International Symposium on Laser Interaction with Matter
Conference Date2018.11.11-2018.11.14
Conference PlaceChangsha(P.R.China)
Abstract

 

Heat release rate of the swirl flames is an important parameter for the gas turbine state. It plays an essential role in the study of combustion characteristics, combustion efficiency and chamber protection. Several swirling CH4/air diffusion flames were investigated in a gas turbine model combustor via the spatial flame mode transition. In the combustion mode transition, we utilized three-dimensional computed tomography of chemiluminescence (3D-CTC) technique due to the complexity of swirling combustion flow field. The 3D emissions of CH∗ were measured and taken as qualitative indicators of the heat release rate under three Reynolds number conditions. This 3D measurement method utilizes 8 multi-directional CH∗ images as inputs combined with tomographic algorithms to compute the 3D distribution of CH∗ intensities. In this study, the transitions of heat release area with Reynolds number were analyzed, and the results show that the heat release rate changing more obviously along the nozzle radial direction than the axis direction, and the largest heat release area moves forward significantly.
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Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80033
Collection高温气体动力学国家重点实验室
Corresponding AuthorLi F(李飞)
Affiliation1.State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, CAS, Beijing; 100190, China
2.Beijing Key Laboratory of Arc Plasma Application Equipment, China Academy of Aerospace Aerodynamics, Beijing; 100074, China
3.School of Engineering Science, University of Chinese Academy of Sciences, Beijing; 100049, China
Recommended Citation
GB/T 7714
Wang KL,Kang GJ,Li F,et al. 3D measurements of swirling flame heat release rate based on CH chemiluminescence[C],2018.
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