Experimental Study on Hydrodynamic Instability Characteristics of N-2-Diluted n-C4H10/Air Flat Flames
文献类型：期刊论文
| 作者 | Jiang, Liqiao1,2 ; Zhou, Guangzhao2; Huo, Jiepeng2; Gu, Chen2; Chen, Xiaoli2
|
| 刊名 | FLOW TURBULENCE AND COMBUSTION
 |
| 出版日期 | 2021-11-17 |
| 页码 | 23 |
| ISSN号 | 1386-6184 |
| 关键词 | Hydrodynamic instability N-2-dilution n-Butane Flat flame burner PLIF |
| DOI | 10.1007/s10494-021-00303-9 |
| 通讯作者 | Jiang, Liqiao(jianglq@ms.giec.ac.cn) |
| 英文摘要 | The hydrodynamic instability characteristics of non-adiabatic N-2-diluted n-butane/air flames generated on McKenna burner were investigated experimentally under atmosphere pressure. In order to capture the quantitative structure of cellular flames, planar laser induced fluorescence technology (OH-PLIF and CH2O-PLIF) was employed, as well as the chemiluminescence imaging was used to record flame morphology directly. The results show that the hydrodynamic instability of stoichiometric (phi = 1.0) n-butane/air flames can be significantly enhanced by N-2 dilution. In addition, the increased mixture flow velocity and the reduced equivalence ratio of lean mixtures will enhance hydrodynamic instability. Moreover, the observed flame morphologies are connected wrinkles instead of independent-cells with lean and stoichiometric mixtures. It is probable that the wrinkled flames mainly caused by hydrodynamic instability cannot induce the extinction of high-temperature oxidant reaction in concave regions solely due to the weakened effect of preferential diffusion. The instability mechanism analysis shows that, the remarkably reduced local flame speed and the much deformed local flow field ahead of n-butane/air/N-2 dilution flames by increasing N-2 dilution ratio play an important role in enhancing hydrodynamic instability. It also indicates that the heat loss reduced more in concave regions than in convex regions toward unburnt mixtures is helpful to enhance the suppression effect of hydrodynamic instability. |
| WOS关键词 | POROUS-PLUG BURNER ; PREMIXED FLAMES ; LAMINAR ; STABILITY ; PROPAGATION ; ONSET ; FUEL ; AIR |
| 资助项目 | National Basic Research Program of China[2014CB239600] ; Science and Technology Planning Project of Guangdong Province of China[2016A040403095] |
| WOS研究方向 | Thermodynamics ; Mechanics |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000719798400001 |
| 资助机构 | National Basic Research Program of China ; Science and Technology Planning Project of Guangdong Province of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/35258]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Jiang, Liqiao |
| 作者单位 | 1.Guangdong Prov Key Lab New & Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Liqiao,Zhou, Guangzhao,Huo, Jiepeng,et al. Experimental Study on Hydrodynamic Instability Characteristics of N-2-Diluted n-C4H10/Air Flat Flames[J]. FLOW TURBULENCE AND COMBUSTION,2021:23. |
| APA | Jiang, Liqiao,Zhou, Guangzhao,Huo, Jiepeng,Gu, Chen,&Chen, Xiaoli.(2021).Experimental Study on Hydrodynamic Instability Characteristics of N-2-Diluted n-C4H10/Air Flat Flames.FLOW TURBULENCE AND COMBUSTION,23. |
| MLA | Jiang, Liqiao,et al."Experimental Study on Hydrodynamic Instability Characteristics of N-2-Diluted n-C4H10/Air Flat Flames".FLOW TURBULENCE AND COMBUSTION (2021):23. |
入库方式： OAI收割
来源：广州能源研究所
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