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| 1 | Theoretical modeling of vectoring dual synthetic jet based on regression analysis显示文摘The excellent vectoring characteristic of Dual Synthetic Jet(DSJ)provides a new control strategy for the active flow control,such as thrust vectoring control,large area cooling,separated flow control and so on.For incompressible flow,the influence relation of source variables,such as structure parameters of actuators,driving parameters and material attributes of piezoelectric vibrating diaphragm,on the vectoring DSJ and a theoretical model are established based on theoretical and regression analysis,which are all verified by numerical simulations.The two synthetic jets can be deemed as a main flow with a higher jet velocity and a disturbing flow with a lower jet velocity.The results indicate that the influence factors contain the low-pressure area formed at the exit of the disturbing flow,which could promote the vectoring deflection,and the impact effect of the disturbing flow and the suppressive effect of the main flow with the effect of restraining the vectoring deflection.The vectoring angle is a complex parameter coupled by all source variables.The detailed theoretical model,whose error is controlled within 3.6 degrees,can be used to quantitatively assess the vectoring feature of DSJ and thus to provide a guidance for designing the control law applied in the active flow control. | Zhijie ZHAO Zhenbing LUO Xiong DENG Zhiyong LIU Shiqing LI | 2021 | Chinese Journal of Aeronautics2021，34，3： | 1 |
| 2 | 涵道风扇电推进系统关键应用技术探讨显示文摘涵道风扇可作为分布式电推进航空器的动力装置,具有良好的发展潜力,现阶段在涵道风扇电推进系统设计和集成应用方面面临一些技术问题。对涵道风扇电推进系统的发展现状及应用前景进行综述,以分布式电推进航空器为背景分析对涵道风扇电推进系统的技术需求,重点探讨了涵道风扇气动设计、涵道风扇与航空器翼身融合设计、电机和涵道风扇结构一体化设计、强迫风冷散热、电磁兼容设计、复杂结构精密制造等关键技术及解决途径,为涵道风扇电推进系统开发和集成应用提供参考。 | 熊俊辉 陈新民 俞浪 石宇昊 吴宪 胡雄龙 | 2023 | 推进技术2023，44，12： | 0 |
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