Effect of wing planform on leading-edge vortex structures

• 来源期刊: 科学通报(英文版)
• 学科: 航空航天
• 关键词: 涡结构 机翼 俯视图 可视化实验 低雷诺数 攻击角 流场结构 翅膀
• 年，卷（期）: 2010,（2）
• 所属期刊栏目: ARTICLES
• 页码范围: 120-123
• 页数: 4页
• 分类号: V211.41 O357.1
• 语种: 英文

摘要

Flow visualization experiments are conducted in water tunnel for low aspect ratio cropped wings at low Reynolds number. The experimental results show that the model sweep angle Λ influences the formation and development of the leading-edge vortex. For wings with Λ =0°, the dominant flow structure is transverse vortex. When Λ≥26°, the dual vortex structure can be observed at some angles of attack, and it is confirmed that the dual vortex is a special structure for flow over low aspect ratio wing at low Reyno...