Numerical simulations of the acoustic footprint of propeller / nacelle / wing configurations

螺旋桨/机舱/机翼配置的声足迹的数值模拟

• 批准号: 461026-2013
• 负责人: Nitzsche, Fred
• 金额: $ 1.7万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=542423
• 关键词: Numerical; simulations; acoustic; footprint; propeller

To demonstrate the capabilities of the in-house SMARTROTOR code in aero-acoustic problems of interest to Pratt & Whitney Canada (P&WC), the acoustic footprint of a multi-blade typical propeller configuration will be studied. The propeller blades will be considered thin airfoils; plate-like rigid structures and the acoustic field generated by compressibility effects will be neglected. The results will be then compared to typical experimental data and the discrepancies found will be analyzed. In addition, it will be detailed the steps and timeline necessary for studying typical installations, which will include: 1) wing and nacelle bodies in the flow downstream the propeller, and 2) the transonic effects in realistic 3-D problems. This project is going the benefit P&WC in the future design of the next generation of turboprop engines that will have to meet more stringent noise regulations.

为了展示内部 SMARTROTOR 代码在加拿大普惠公司 (P&WC) 感兴趣的航空声学问题中的功能，将研究多叶片典型螺旋桨配置的声学足迹。螺旋桨叶片将被视为薄翼型；板状刚性结构和压缩效应产生的声场将被忽略。 然后将结果与典型的实验数据进行比较，并对发现的差异进行分析。此外，还将详细介绍研究典型装置所需的步骤和时间表，其中包括：1) 螺旋桨下游流动中的机翼和机舱主体，以及 2) 现实 3-D 问题中的跨音速效应。该项目将使普惠惠在下一代涡轮螺旋桨发动机的未来设计中受益，这些发动机必须满足更严格的噪音法规。