| 唐佳栋,王高峰,叶尚军,娄斌,黄志龙.基于螺旋桨滑流效应的大展弦比机翼气动弹性分析[J].计算力学学报,2023,40(1):21~26 |
|
| 
码上扫一扫！ |
| 基于螺旋桨滑流效应的大展弦比机翼气动弹性分析 |
| Aeroelastic analysis of a large aspect ratio wing based on the effect of propeller slipstream |
| 投稿时间：2021-08-06 修订日期：2021-11-12 |
| DOI：10.7511/jslx20210806001 |
| 中文关键词: 大展弦比机翼 滑移网格 螺旋桨滑流 CFD/CSD双向流固耦合计算 气动弹性 |
| 英文关键词:high aspect ratio wing sliding mesh propeller slipstream CFD/CSD two-way coupling aeroelasticity |
| 基金项目:国家自然科学基金（12132013）资助项目. |
|
| 摘要点击次数: 730 |
| 全文下载次数: 343 |
| 中文摘要: |
| 以高空长航时大展弦比太阳能无人机机翼为研究对象，针对分布式电驱螺旋桨滑流和大展弦比机翼之间耦合的复杂气动干涉问题，采用滑移网格方法、动网格技术、SST k-ω RANS湍流模型和CFD/CSD （Computational Fluid Dynamics/Computational Structural Dynamics）双向流固耦合技术，研究了螺旋桨不同转速、布局方式和气动阻尼对机翼气动弹性响应的影响。数值计算结果表明，螺旋桨滑流会改变机翼表面的压力分布；螺旋桨流场对机翼的扰动频率接近机翼的结构固有频率时，机翼会发生共振；螺旋桨的位置越靠近翼尖，或螺旋桨的数量增多，都将增加机翼气动弹性响应的幅值。 |
| 英文摘要: |
| In order to solve the complex coupling problem between distributed electric propeller slipstream and high aspect ratio wing, the high aspect ratio wing of a high-altitude long-endurance solar UAV is taken as the research object.Sliding mesh method, dynamic mesh technology and SST k-ω RANS turbulence model and CFD/CSD (Computational Fluid Dynamics/Computational Structural Dynamics) two-way coupling are used to study the effects of different propeller speeds and arrangements as well as aerodynamic damping on aeroelastic response.The numerical results show that propeller slipstream can change the pressure distribution on the wing surface.When the disturbance frequency of the propeller blade to the wing is close to the natural frequency of the wing, the resonance of the wing will be caused.The closer the position of the propeller to the wing tip, or the higher number of propellers, the greater amplitude of the aeroelastic response of the wing. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
