Study and control of airfoil-vortex interaction with unsteady effects

具有非定常效应的翼型-涡相互作用的研究与控制

• 批准号: 288258-2010
• 负责人: Feszty, Daniel
• 金额: $ 1.53万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=548162
• 关键词: Study; control; airfoil; vortex; interaction

The aerodynamics of helicopters is unique in that they feature phenomena not seen in any other applications. These include the presence of a persistent helical tip vortex, the interaction of this tip vortex with the other blades (Blade-Vortex Interaction), the occurrence of shock waves on the advancing blades, or dynamic stall on the retreating ones. All these phenomena occur in each revolution and are the source of severe vibration and noise, the reduction of which has become the main focus of the helicopter industry recently.

直升机的空气动力学是独特的，因为它们具有在任何其他应用中看不到的现象。这些包括持续螺旋形叶尖涡流的存在、该叶尖涡流与其他叶片的相互作用（叶片-涡流相互作用）、前进叶片上出现的激波或后退叶片上的动态失速。所有这些现象都发生在每一次旋转中，并且是严重振动和噪声的来源，减少振动和噪声已成为直升机行业最近的主要焦点。