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The Effects of Combustion on Turbulent Statistics in a Supersonic Turbulent Jet
Fu YW; Yu ZP(于长平); Yan Z; Li XL(李新亮)
Source PublicationADVANCES IN APPLIED MATHEMATICS AND MECHANICS
2019-06-01
Volume11Issue:3Pages:664-674
ISSN2070-0733
AbstractThe 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.
KeywordSupersonic jet turbulent combustion direct numerical simulation
DOI10.4208/aamm.2018.s10
Indexed BySCI
Language英语
WOS IDWOS:000456198100011
WOS KeywordREYNOLDS-NUMBER ; SHEAR-LAYER ; FLAME ; SIMULATION ; REGION ; FIELD
WOS Research AreaMathematics, Applied ; Mechanics
WOS SubjectMathematics ; Mechanics
Funding OrganizationNSFC [91852203, 11472278] ; National Key Research and Development Program of China [2016YFA0401200] ; Science Challenge Project [TZ2016001] ; Chinese Academy of Sciences [XDA17030100]
ClassificationQ4
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78445
Collection高温气体动力学国家重点实验室
Affiliation1.{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
Recommended Citation
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,于长平,Yan Z,&李新亮.(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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