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Comparative Study of Elliptic and Round Scramjet Combustors Fueled by RP-3
Yao W(姚卫); Yuan YM(袁越明); Li XP(李晓鹏); Wang J(王晶); Wu K(吴坤); Fan XJ(范学军)
2018
会议名称21st AIAA International Space Planes and Hypersonics Technologies Conference
会议日期MAR 06-09, 2017
会议地点Xiamen, PEOPLES R CHINA
会议录名称JOURNAL OF PROPULSION AND POWER
摘要To explore the combustion performance of nonrectangular supersonic combustors, the flow and combustion characteristics in the round and round-to-elliptic shape-transition scramjet combustors were compared, based on the measurements and the improved delayed detached-eddy simulation modelings. The global equivalence ratio was kept at 0.8, whereas two inlet Mach numbers of 2.5 and 3.0 were tested. To reduce the computational cost, four versions of skeletal mechanisms (respectively, 48 s/197 r, 39 s/153 r, 28 s/92 r, and 19 s/54 r) have been developed for China RP-3 kerosene; and the latest one was used. The predicted static pressure profiles along the streamwise direction were first validated against the measurements. Then, the aerodynamic fields were analyzed for the two combustors to compare their flow, mixing, and combustion performances. The three-dimensional wave structures inside the nonaxisymmetric elliptic combustor were revealed for the first time to show the influence of shape transition. Specifically, the time evolution of the flame structures was analyzed, and dominant modes were extracted by the aid of proper orthogonal decomposition.
资助信息This project was supported by training program of the Major Research Plan of the National Natural Science Foundation of China (grant no.91641110) and the National Natural Science Foundation of China (grant no.11502270). The authors are also grateful to National Supercomputing Center of Tianjin for providing computational resources.
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收录类别CPCI-S ; EI
语种英语
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文献类型会议论文
条目标识符http://dspace.imech.ac.cn/handle/311007/75547
专题高温气体动力学国家重点实验室
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Yao W,Yuan YM,Li XP,et al. Comparative Study of Elliptic and Round Scramjet Combustors Fueled by RP-3[C],2018.
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