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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。
Active flow control technology has always been the forefront of fluid dynamics and hot spots. In view of the poor adaptability of traditional synthetic jet flow control environment and low energy efficiency, a synthetic dual jet and its flow control technology have been developed. This article reviews its main research progress. The basic idea of synthetic jet actuator design based on the principle of energy utilization and gas pressurization is proposed. The synthetic dual jet, vector synthetic double jet, synthetic double jet continuous jet, synthetic hot / cold jet, self-supporting double jet Series of new synthetic jet actuators. The synthetic dual jet actuator solves the problem of environmental adaptability caused by ballast failure, and has the features of energy efficiency, controllable frequency multiplication and unique vector functions. The application directions of synthetic dual jet flow control, vector control, supersonic / hypersonic inlet flow field control, aerodynamic thermal control, cooling and cooling, anti-icing and underwater biomimetic propulsion were investigated. New features for extreme environments.