Real-time simulation modeling for integrated inlet and engine system based on normal shock position calculation
发布时间：2020-01-13 点击次数：
张海波（教授）
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- 博士生导师 硕士生导师
- 电子邮箱：
- 所在单位：能源与动力学院
- 职务：能源与动力学院控制工程系主任
- 学历：南京航空航天大学
- 办公地点：A10-538
- 联系方式：zh_zhhb@126.com
- 学位：工学博士学位
- 所属院系：能源与动力学院
- 学科：动力工程及工程热物理
航空宇航科学与技术
能源动力
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- 所属单位：能源与动力学院
- 发表刊物：Hangkong Dongli Xuebao
- 摘要：An integrated simulation for mixed compression supersonic inlet and engine system was conducted based on normal shock position calculation. A computation scheme was put forward to separate the inlet model into two parts, which were calculated respectively: the external part of the formula was used to compute the oblique shock to obtain internal inlet boundary conditions, and the internal part modelling by quasi one-dimensional CFD was used to simulate the effect of back pressure on the normal shock position. Compared with two-dimensional CFD simulation, it was found that this method can shorten the calculation time a lot on the premise of guaranteeing parameter accuracy effectively, resulting in a better real-time simulation ability. Further, the inlet model and engine component-level model were integrated to output dynamic coupling effects of these two systems. Finally, some necessary simulations were implemented, showing clearly that the integrated model could accurately emulate the dynamic and static influences between inlet norm shock position and the engine. When turbulence occurred in the incoming flow, the change of the normal shock position can be suppressed by adjusting the nozzle throat area and the compressor guide vane angle rapidly. The reduction of the thrust can be reduced by 50%. © 2018, Editorial Department of Journal of Aerospace Power. All right reserved.
- ISSN号：1000-8055
- 是否译文：否
- 发表时间：2018-01-01
- 合写作者：Du, Yao,Liu, Minglei
- 第一作者：张海波
- 通讯作者：张海波