基于方格网状等离子体激励器的翼型湍流减阻实验  

A New Turbulent Drag Reduction Method Based on Grid-Type Plasma Actuators

作　　者：方子淇 宗豪华 苏志 付正阳 干宗耀 曹亚威 FANG Ziqi;ZONG Haohua;SU Zhi;FU Zhengyang;GAN Zongyao;CAO Yawei(School of Aerospace Engineering,Xi’an Jiaotong University,Xi’an 710049,China;School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Aeronautical Engineering School,Air Force Engineering University,Xi’an 710038,China)

机构地区：[1]西安交通大学航天航空学院,西安710049 [2]西安交通大学机械工程学院,西安710049 [3]空军工程大学航空工程学院,西安710038

出　　处：《空军工程大学学报》2023年第2期17-22,共6页Journal of Air Force Engineering University

基　　金：基础加强计划领域基金(2019-077);国防科技重点实验室基金(614220220200109)。

摘　　要：等离子体流动控制技术具有结构简单、响应迅速等特点,已成为流动控制领域的研究热点。为减小飞机的湍流摩擦阻力,提出了一种基于方格网状等离子体激励器的新型湍流减阻方法,研究了其放电特性与诱导流动特性,并在风洞中获得该激励器减小NACA0012翼型湍流摩擦阻力的参数规律。结果表明,静止条件下,方格网状激励诱导的射流速度与占空比成正比,而随脉冲频率的增大先增加后减小,诱导射流的最大瞬时速度为1.75 m/s。来流速度为15 m/s时,激励能使翼型湍流摩擦阻力减小3.5%。方格网状激励诱导产生的射流使近壁面流体整体抬升,破坏近壁面涡结构,进而抑制湍流生成,实现摩擦减阻。Being simple in structure and rapid in response,plasma flow control technology is under interesting review by scholars.In order to reduce the turbulent frictional drag of the aircraft,a new turbulent drag reduction method based on grid-type plasma actuator is proposed.The discharge characteristics and induced jet characteristics are researched,and the parameters of actuator to reduce the turbulent friction drag of NACA0012 airfoil are obtained in the wind tunnel.The results show that under static conditions,the jet velocity induced by grid-type actuator is proportional to the duty cycle,and increases first and then decreases with the increase of pulse frequency.The maximum instantaneous velocity of induced jet is 1.75 m/s.When the inflow velocity is 15 m/s,the actuation makes the turbulent friction drag of the airfoil reduce by 3.5%.The jet induced by the grid-type actuator makes the near-wall fluid lift and the near-wall vortex structure destroy,and further inhibit the generation of turbulence to achieve friction drag reduction.

关 键 词：湍流减阻 等离子体流动控制 等离子体激励器 翼型 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]