Research and development of an active unsteady flow and turbulence generation system for wind tunnels

风洞主动非定常流及湍流发生系统的研发

• 批准号: 555545-2020
• 负责人: Hanson, Ronald
• 金额: $ 2.33万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=705951
• 关键词: Research; development; active; unsteady; flow

Wind tunnels are an important tool that are used for automotive performance testing. The wind tunnels are used to produce airflow conditions that a vehicle experiences with accuracy and repeatability. Vehicle testing performed in wind tunnels is used to characterize performance measures such as aerodynamics, which is important for improving fuel consumption/emissions and vehicle stability. Most full-scale automotive test facilities are designed to simulate ideal conditions such as a that occurring when a vehicle passes through still air. However, on-road driving conditions are subject to turbulence, cross flow or wind gusts, that can degrade a vehicle's performance. Aiolos Engineering Corporation is a Canadian company that is located in Toronto, Ontario. Aiolos is a world leader in the design and construction of full-scale wind tunnels and test facilities. In this collaborative partnership between Aiolos and Prof. Hanson's research group (in the Department of Mechanical Engineering, York University), a novel active unsteady flow and turbulence generation system for automotive wind tunnels to better simulate on-road wind conditions will be researched and developed. Measurements of the unsteady flow and turbulence produced by the active system will be carried out. The effect of geometric and motion parameters of the active system on the resulting flow fields will be studied to determine suitable combinations to better model the airflow conditions often experienced by vehicles on the road. In the long term the research supports improved vehicle performance and the Canadian competitive advantage in wind tunnel design. The proposed project will also support the training of MASc students in experimental fluid dynamics, wind tunnel testing and dynamic systems, which are relevant skills in demand by industry sectors including automotive, aerospace, wind engineering and energy.

风洞是用于汽车性能测试的重要工具。风洞用于产生车辆所经历的精确且可重复的气流条件。在风洞中进行的车辆测试用于表征空气动力学等性能指标，这对于改善油耗/排放和车辆稳定性非常重要。大多数全尺寸汽车测试设施旨在模拟理想条件，例如车辆通过静止空气时发生的情况。然而，道路驾驶条件容易受到湍流、横流或阵风的影响，这可能会降低车辆的性能。 Aiolos Engineering Corporation 是一家加拿大公司，位于安大略省多伦多。 Aiolos 是全尺寸风洞和测试设施设计和建造领域的世界领先者。在 Aiolos 和 Hanson 教授的研究小组（约克大学机械工程系）的合作中，将研究和开发一种用于汽车风洞的新型主动非定常流和湍流生成系统，以更好地模拟道路风况。将测量主动系统产生的非定常流和湍流。将研究主动系统的几何和运动参数对所得流场的影响，以确定合适的组合，以更好地模拟道路上车辆经常遇到的气流条件。从长远来看，该研究支持改进车辆性能和加拿大在风洞设计方面的竞争优势。 拟议的项目还将支持对实验流体动力学、风洞测试和动态系统方面的硕士生进行培训，这些都是汽车、航空航天、风工程和能源等行业所需的相关技能。