多段翼型风洞侧壁边界层吹除控制实验研究  

Experiment Investigation of Side Wall Boundary-layer Blowing Control of a Multi-element Airfoil Model in Wind Tunnel

作　　者：张理想[1] 解亚军[1] 邓小龙[1] 

机构地区：[1]西北工业大学翼型叶栅空气动力学国家重点实验室,西安710072

出　　处：《科学技术与工程》2011年第23期5594-5598,共5页Science Technology and Engineering

基　　金：国家自然科学基金;国家重点实验室基金资助

摘　　要：通过调研国内外相关文献资料,结合实验室建设项目:侧壁边界层控制系统研制,选取相对厚度为17%的GAW—1翼型进行了风洞侧壁边界层吹除控制下气动性能的实验研究。介绍了该系统的特点和实验方法,研究了侧壁边界层吹除控制对单段和多段翼型的二元性的影响规律。结果表明:(1)对多种吹气位置不同组合来说,以前缝关闭,中缝和后缝打开吹气为最佳吹气方式;(2)不同吹气系数对模型展向中间剖面和端部剖面的压力分布影响不同,存在对应的最佳吹气系数;(3)实验研究验证了NF—3风洞侧壁边界层吹除控制系统可以有效控制侧壁边界层的干扰,改善和提高翼型气动特性实验的准确性。Based on a lot of materials about SWBL＇ s researches, and one of development projects in NWPU-the equipment of NF--3 wind tunnel side wall boundary blowing control system , the aerodynamics of GAW--1 airfoil with relative thickness for 17% has been experimented under the condition of wind tunnel side wall boundary-layer blowing control. Characteristics of the system are introduced here. And the effects of the airfoil＇ s 2D performance influenced by wind tunnel side wall boundary-layer are investigated. The experiments indicate that ： （ 1 ） for the dif- ferent types of blowing slots combination in this experiment, the best type is thought for second blowing way： the former slot close, the middle and after slots open. （2） different blowing coefficients have different effects for the pressure distribution of the middle section profile and the end section profile close to tunnel wall; （3） analysis of the experiment results verifies the effectiveness of the blowing system to decrease or eliminate interference from wind tunnel side wall boundary layer, and improvement of the experiment accuracy in aerodynamic characteristic of airfoil tests.

关 键 词：风洞侧壁边界层 多段翼型 侧壁干扰 吹除控制系统 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程]