Resolving the mechanics of wall-mounted finite airfoil noise production

解决壁挂式有限翼型噪声产生的机理

• 批准号: DE150101528
• 负责人: A/Prof Danielle Moreau
• 金额: $ 23.8万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-05 至 2020-02-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE150101528
• 关键词: Resolving; mechanics; wall; mounted; finite

Noise from air transportation and wind turbines is a rapidly growing component of environmental noise pollution that must be reduced to improve public health and well-being. A submarine must also have a low acoustic signature to ensure its stealthiness. The common source of noise generation among these technologies is the airfoil, yet we do not understand how they create noise in real, complex environments. This project aims to understand how fluid flow interacts with a wall-mounted finite airfoil to produce sound. The project aims to identify the noise producing physics via a novel wind tunnel experiment and numerical study. This enhanced understanding will create better airfoil noise prediction and control strategies in the future.

空中运输和风力涡轮机的噪音是环境噪音污染中快速增长的组成部分，必须减少噪音以改善公众健康和福祉。潜艇还必须有一个低的声学特征，以确保其隐蔽性。这些技术中产生噪音的共同来源是翼型，但我们不了解它们如何在真实的复杂环境中产生噪音。这个项目的目的是了解流体流动如何与壁装有限翼型相互作用，产生声音。该项目旨在通过一种新的风洞实验和数值研究来识别噪声产生的物理学。这种增强的理解将在未来创造更好的翼型噪声预测和控制策略。