合成双射流及其流动控制技术研究进展

发布时间：2018-07-25 20:37

【摘要】：主动流动控制技术一直以来都是流体力学研究的前沿和热点。针对传统合成射流流动控制环境适应性差和能量效率不高的问题,发展了合成双射流及其流动控制技术。本文对其主要研究进展进行了综述。研究提出了基于能量综合利用和气体增压原理的合成射流激励器设计基本思想,发明了合成双射流、矢量合成双射流、合成双射流基连续射流、合成热/冷射流、自持式合成双射流等系列化新型合成射流激励器。合成双射流激励器解决了压载失效带来的环境适应性问题,且具有能量效率、可控频率倍增特性以及特有的矢量功能。开展了合成双射流分离流控制、矢量控制、超声速/高超声速进气道流场控制、气动热控制、散热冷却、防除冰、水下仿生推进等应用方向,验证了合成双射流控制效率倍增和应用于极端环境的新功能。
[Abstract]:Active flow control technology has always been the frontier and hot spot of hydrodynamics research. In order to solve the problems of poor adaptability and low energy efficiency of conventional synthetic jet flow control, the synthetic double jet and its flow control technology are developed. In this paper, the main research progress is reviewed. The basic idea of the design of synthetic jet actuator based on the principle of comprehensive utilization of energy and the principle of gas pressurization is proposed. The synthetic double jet, the vector synthesis double jet, the synthetic double jet base continuous jet, the synthetic heat / cold jet are invented. A series of self-sustained synthetic double jets and a new type of synthetic jet actuator. The dual jet actuator solves the environmental adaptability problem caused by ballast failure, and has the characteristics of energy efficiency, controllable frequency multiplication and unique vector function. The application directions of synthetic double jet separation flow control, vector control, supersonic / hypersonic inlet flow field control, aerodynamic heat control, heat dissipation cooling, anti-ice removal, underwater bionic propulsion, etc have been carried out. The new functions of double jet control efficiency multiplication and application in extreme environments are verified.
【作者单位】：国防科学技术大学航天科学与工程学院;
【基金】：国家自然科学基金(11372349,11572349,11602299)
【分类号】：O358;V219

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