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Performance of supersonic model combustors with staged injections of supercritical aviation kerosene
Zhong FQ(仲峰泉); Fan XJ(范学军); Yu G(俞刚); Li JG(李建国); Sung CJ; Zhong FQ
Source PublicationActa Mechanica Sinica
2010
Volume26Issue:5Pages:661-668
ISSN0567-7718
AbstractSupersonic model combustors using two-stage injections of supercritical kerosene were experimentally investigated in both Mach 2.5 and 3.0 model combustors with stagnation temperatures of approximately 1,750 K. Supercritical kerosene of approximately 760 K was prepared and injected in the overall equivalence ratio range of 0.5-1.46. Two pairs of integrated injector/flameholder cavity modules in tandem were used to facilitate fuel-air mixing and stable combustion. For single-stage fuel injection at an upstream location, it was found that the boundary layer separation could propagate into the isolator with increasing fuel equivalence ratio due to excessive local heat release, which in turns changed the entry airflow conditions. Moving the fuel injection to a further downstream location could alleviate the problem, while it would result in a decrease in combustion efficiency due to shorter fuel residence time. With two-stage fuel injections the overall combustor performance was shown to be improved and kerosene injections at fuel rich conditions could be reached without the upstream propagation of the boundary layer separation into the isolator. Furthermore, effects of the entry Mach number and pilot hydrogen on combustion performance were also studied.
KeywordSupersonic Combustion Staged Injection Combustion Efficiency Supercritical Kerosene
DOI10.1007/s10409-010-0367-y
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Indexed BySCI
Language英语
WOS IDWOS:000282089700002
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationNational Natural Science Foundation of China [10672169, 10621202]
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/43557
Collection高温气体动力学国家重点实验室
Corresponding AuthorZhong FQ
Recommended Citation
GB/T 7714
Zhong FQ,Fan XJ,Yu G,et al. Performance of supersonic model combustors with staged injections of supercritical aviation kerosene[J]. Acta Mechanica Sinica,2010,26(5):661-668.
APA 仲峰泉,范学军,俞刚,李建国,Sung CJ,&Zhong FQ.(2010).Performance of supersonic model combustors with staged injections of supercritical aviation kerosene.Acta Mechanica Sinica,26(5),661-668.
MLA 仲峰泉,et al."Performance of supersonic model combustors with staged injections of supercritical aviation kerosene".Acta Mechanica Sinica 26.5(2010):661-668.
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