New insights in unsteady three dimensional flows and their interactions with airfoils and bluff bodies

关于不稳定三维流及其与翼型和钝体相互作用的新见解

• 批准号: RGPIN-2016-03995
• 负责人: Fellouah, Hachimi
• 金额: $ 1.89万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=681601
• 关键词: New; insights; unsteady; three; dimensional

The interactions between unsteady three-dimensional (3D) flows with airfoils and bluff bodies have a significant impact in many important applications as the aerospace and wind energy production and transportation. These phenomena are multi-physics and characterized by a complex flow and unsteady aerodynamics. The ultimate goal of my research program is to enhance the current fundamental knowledge regarding these phenomena and to transfer the outcomes to other researchers and end-users (Canadian industries and government).******The proposed research will be conducted in the large wind tunnel at the Université de Sherbrooke (UdeS). It has a closed test section of 1.82 m1.82 m and a top speed of the air flow is 32 m/s. The effect of different parameters, as the Reynolds number and the angle of attack, will be evaluated. The spatiotemporal dynamics of the resulted unsteady wake will be investigated, namely the identification and development of the vortex structures. The measurements will be recorded using some high tech equipment as the Hot Wire Anemometry (HWA) and Tomographic Particle Image Velocimetry (Tomo-PIV).******Highly qualified personnel (HQP) at different levels (PhDs, Masters and Undergraduate students) will be trained. They will gain highly demanded skills and expertise in many high technology sectors in Canada as experimental methods in fluid mechanics. These HQP will work in a stimulating and dynamic environment as the Department of mechanical engineering at the UdeS where complementary programs are offered to acquire transversal competencies. **

非定常三维 (3D) 流与翼型和钝体之间的相互作用对航空航天和风能生产和运输等许多重要应用产生重大影响，这些现象是多物理场的，并以复杂的流动和非定常空气动力学为特征。我的研究计划的最终目标是增强当前有关这些现象的基础知识，并将结果转移给其他研究人员和最终用户（加拿大工业界和政府）。******拟议的研究将在大的舍布鲁克大学 (UdeS) 的风洞有一个 1.82 m1.82 m 的封闭测试段，气流的最高速度为 32 m/s 不同参数（如雷诺数和角度）的影响。将评估由此产生的不稳定尾流的时空动力学，即涡流结构的识别和发展将使用一些高科技设备（如热线）进行记录。风速测量（HWA）和断层粒子图像测速（Tomo-PIV）。******不同级别的高素质人才（HQP）（博士、硕士和本科生）将接受培训，他们将获得高要求的技能和专业知识。这些 HQP 将在加拿大许多高科技领域作为流体力学实验方法在 UdeS 机械工程系的刺激和动态环境中工作，提供补充课程以获取横向能力**。