An energy integral method analysis of preferred modes and the spreading rates of supersonic circular jets | |
Yu DH; Gu HB(顾洪斌)![]() ![]() | |
Source Publication | ASPACC 2015 - 10th Asia-Pacific Conference on Combustion |
2015 | |
Conference Name | 10th Asia-Pacific Conference on Combustion, ASPACC 2015 |
Conference Date | July 19, 2015 - July 22, 2015 |
Conference Place | Beijing, China |
Abstract | Jet spreading plays a crucial role in process of fuel mixing in supersonic combustion. The jet preferred mode signifies the maximum spreading rate of the shear layer of jets under periodic excitation. In this paper, linear frequency response of compressible axisymmetric jets was analyzed based on an energy integral method. The jet preferred mode was numerically identified, and its dependence on various flow parameters were analyzed. The most interesting discovery of the analysis is that the jet preferred frequency, which is denoted by Strouhal number Stp= fpD/u0, is found to vary in non-monotonic manner with the jet exit Mach number M0. The implication of the result for mixing enhancement of supersonic jets with ambient fluids was also discussed. |
Keyword | Axisymmetric Jet Flow Parameters Linear Frequency Response Mixing Enhancement Periodic Excitations Supersonic Circular Jet Supersonic Combustion Supersonic Jets |
Department | LHD高超声速推进技术 |
Indexed By | EI |
Language | 英语 |
Document Type | 会议论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/60167 |
Collection | 高温气体动力学国家重点实验室 |
Corresponding Author | Zhang, Peng ([email protected]) |
Recommended Citation GB/T 7714 | Yu DH,Gu HB,Zhang P,et al. An energy integral method analysis of preferred modes and the spreading rates of supersonic circular jets[C]ASPACC 2015 - 10th Asia-Pacific Conference on Combustion,2015. |
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1000014045628.pdf(303KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Download |
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