| 环量控制尾梁参数对直升机尾梁侧向推力的影响 |
| |
| 引用本文： | 董振兴,高亚东,王华明.环量控制尾梁参数对直升机尾梁侧向推力的影响[J].直升机技术,2011(4):12-15,24. |
| |
| 作者姓名： | 董振兴 高亚东 王华明 |
| |
| 作者单位： | 南京航空航天大学直升机旋翼动力学重点实验室,江苏南京,210016 |
| |
| 摘 要： | 用动量源法模拟了旋翼的下洗流,对壁面射流控制圆柱绕流的环量控制参数进行了研究,利用Fluent软件分析了缝隙位置、大小和数目等参数对尾梁气动特性的影响,获得了圆柱体尾梁上气动力随环量控制参数变化的关系.其中,动量系数(喷气强度)和缝隙几何参数对圆柱尾梁上气动力的影响是本文重点.研究结果表明,缝隙位置对圆柱体尾梁的气动性能影响明显；旋翼下洗流中单缝最佳缝隙位置与风洞中相差很大；采用多缝喷气可提高圆柱体尾梁的最大升力系数.
|
| 关 键 词： | 无尾桨 尾梁 环量控制 计算流体力学 |
Influence of Circulation Control Parameters on Lateral Thrust of Helicopter Tail Boom in Rotor Downwash |
| |
| Authors: | DONG Zhenxing GAO Yadong WANG Huaming |
| |
| Institution: | DONG Zhenxing,GAO Yadong,WANG Huaming (National Key Laboratory of Rotorcraft Aeromechanics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
| |
| Abstract: | For the purpose of further mastering circulation control mechanism of a tail boom,the momentum source model was used to analyze the rotor downwash.This paper studied the circulation control parameters using a wall jet control model.Influences of the spray slot location,size and number on the aerodynamic characteristic of the boom were analyzed by using Fluent,and the relationship between them was obtained.The influence of the momentum coefficient and the geometric parameters of the slots on the aerodynamic ... |
| |
| Keywords: | NOTAR tail boom circulation control computational fluid dynamics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
