|
个人信息Personal Information
副教授 硕士生导师
招生学科专业：
动力工程及工程热物理 -- 【招收硕士研究生】 -- 能源与动力学院
航空宇航科学与技术 -- 【招收硕士研究生】 -- 能源与动力学院
能源动力 -- 【招收硕士研究生】 -- 能源与动力学院
性别：男
毕业院校：中国科学院研究生院 中科院力学所
学历：中国人民共和国科学院研究生院
学位：工学博士学位
所在单位：能源与动力学院
办公地点：南京航空航天大学 能源与动力学院 A10-636
联系方式：13584043379
电子邮箱：
Control of pseudo-shock oscillation in scramjet inlet-isolator using periodical excitation
点击次数：
所属单位：能源与动力学院
发表刊物：ACTA ASTRONAUTICA
关键字：Pseudo-shock Pressure oscillation Inlet unstart Periodical excitation Flow control
摘要：To suppress the pressure oscillation, stabilize the shock train in the scramjet isolator and delay the hypersonic inlet unstart, flow control using periodic excitation was investigated with unsteady Reynolds averaged Navier-Stokes simulations. The results showed that by injecting air to manipulate the cowl reflected shock wave, the separation bubble induced by it was diminished and the pressure oscillations of the shock train were markedly suppressed. The power spectral density and standard deviation of wall pressure were significantly reduced. The simulations revealed that this active control method can raise the critical back pressure by 17.5% compared with the baseline, which would successfully delay the hypersonic inlet unstarts. The results demonstrated that this active control method is effective in suppressing pressure oscillation and delaying hypersonic inlet unstarts.
ISSN号：0094-5765
是否译文：否
发表时间：2018-02-01
合写作者：Chen, Yun,Zhang, Feng-Rui,Tang, Piao-Ping
通讯作者：苏纬仪