The Effects of Combustion on Turbulent Statistics in a Supersonic Turbulent Jet | |
Fu YW(符耀威); Yu ZP(于长平); Yan Z(闫政); Li XL(李新亮) | |
发表期刊 | ADVANCES IN APPLIED MATHEMATICS AND MECHANICS |
2019-06-01 | |
卷号 | 11期号:3页码:664-674 |
ISSN | 2070-0733 |
摘要 | The effects of combustion on turbulent statistics in a supersonic turbulent jet are investigated by using direct numerical simulation (DNS). To study the combustion effects, two DNS cases (reacting case and non-reacting case) are conducted and the comparison of turbulent statistics are used to study the combustion effects. The medium of jet is 85% hydrogen with temperature 305K and the co-flow is hot air with temperature 1150K. The Reynolds numbers based on the jet diameters are 22000 and the jet Mach numbers are 1.2. The DNS results show that combustion case has both larger decay rate constant of centerline streamwise mean velocity and larger spreading rate of half-velocity jet width than the non-reacting case. It also shows that the combustion case achieves the self-similarity slower. For reacting jet, the vortex structures are more smooth in the near field and vortex filament structures are larger in the far field. Combustion causes the turbulent zone to be delayed downstream and increases the probability of strong velocity pulsation. |
关键词 | Supersonic jet turbulent combustion direct numerical simulation |
DOI | 10.4208/aamm.2018.s10 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000456198100011 |
关键词[WOS] | REYNOLDS-NUMBER ; SHEAR-LAYER ; FLAME ; SIMULATION ; REGION ; FIELD |
WOS研究方向 | Mathematics, Applied ; Mechanics |
WOS类目 | Mathematics ; Mechanics |
项目资助者 | NSFC [91852203, 11472278] ; National Key Research and Development Program of China [2016YFA0401200] ; Science Challenge Project [TZ2016001] ; Chinese Academy of Sciences [XDA17030100] |
论文分区 | Q4 |
力学所作者排名 | 1 |
RpAuthor | Li, XL |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/78445 |
专题 | 高温气体动力学国家重点实验室 |
通讯作者 | Li XL(李新亮) |
作者单位 | 1.{Fu, Yaowei、Yu, Changping、Yan, Zheng、Li, Xinliang} Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China 2.{Fu, Yaowei、Yu, Changping、Yan, Zheng、Li, Xinliang} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Fu YW,Yu ZP,Yan Z,et al. The Effects of Combustion on Turbulent Statistics in a Supersonic Turbulent Jet[J]. ADVANCES IN APPLIED MATHEMATICS AND MECHANICS,2019,11,3,:664-674. |
APA | Fu YW,Yu ZP,Yan Z,&Li XL.(2019).The Effects of Combustion on Turbulent Statistics in a Supersonic Turbulent Jet.ADVANCES IN APPLIED MATHEMATICS AND MECHANICS,11(3),664-674. |
MLA | Fu YW,et al."The Effects of Combustion on Turbulent Statistics in a Supersonic Turbulent Jet".ADVANCES IN APPLIED MATHEMATICS AND MECHANICS 11.3(2019):664-674. |
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