翼型外形与激励参数对等离子体流动控制的影响  

Influence of Airfoil Profile and Excitation Parameters on Plasma Flow Control

作　　者：王丹 王骥飞 秦紫阳 刘苏瑶 WANG Dan;WANG Jifei;QIN Ziyang;LIU Suyao(Inner Mongolia University of Technology,Hohhot 010100,China;Key Laboratory of Wind Energy and Solar Energy Utilization Technology of Ministry of Education,Inner Mongolia University of Technology,Hohhot 010100,China)

机构地区：[1]内蒙古工业大学能源与动力工程学院,呼和浩特010100 [2]内蒙古工业大学风能太阳能利用技术教育部重点实验室,呼和浩特010100

出　　处：《工程热物理学报》2024年第9期2656-2670,共15页Journal of Engineering Thermophysics

基　　金：内蒙古自治区自然科学基金项目(No.2019BS01008);内蒙古自治区高等学校科学研究项目(No.NJZY20075);内蒙古自治区直属高校基本科研业务费项目(No.JY20220149)。

摘　　要：流动控制能够改善翼型受力状态从而提高气动特性,等离子体流动控制作为一种主动流动控制技术是当前研究的热点之一。本文采用等离子体唯象学模型,该模型忽略等离子体激励对动量的影响只考虑能量的注入对热效应的影响,将其与流动N-S方程相耦合方法,使用数值模拟手段研究等离子体气动激励对不同几何外形的翼型流动分离控制效果。模拟结果表明:施加等离子体激励可以增升减阻提升翼型气动特性,同时对翼型流动分离有控制作用,随翼型厚度增加使C_(l)增加量从147.7%下降到72.6%,弯度增加使C_(l)增加量从147.7%下降到19.6%,激励流动控制效果减弱且最大厚度位置靠前或靠后均削弱激励控制效果。此外流动控制作用与激励参数有关,改变激励电压峰值和频率都会对控制效果产生影响。通过研究分析可以为后续的翼型选型和更好的选择激励参数提供帮助。Flow control can improve the force state of airfoil and thus improve the aerodynamic characteristics.As an active flow control technology,plasma flow control is one of the hot spots in current research.In this paper,a plasma phenomenological model is adopted,which ignores the influence of plasma excitation on momentum and only considers the influence of energy injection on heat effect.The model is coupled with the flow N-S equation to study the control effect of plasma aerodynamic excitation on airfoil flow separation with different geometric shapes by numerical simulation.The simulation results show that:The application of plasma excitation can improve the aerodynamic characteristics of airfoil by increasing lift and drag,and control the flow separation of airfoil.With the increase of airfoil thickness,the increase of C_(l)decreases from 147.7%to 72.6%,and the increase of C_(l)decreases from 147.7%to 19.6%with the increase of bend.The control effect of the excitation flow is weakened and the position of the maximum thickness is near the front or back.In addition,the flow control function is related to the excitation parameters,and changing the excitation voltage peak and frequency will affect the control effect.The research and analysis can provide help for subsequent airfoil selection and better selection of excitation parameters.

关 键 词：等离子体 流动分离 几何外形 气动特性 数值模拟 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]