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: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=650577
• 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 m×1.82 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. **

非定常三维流场与翼型和海崖体的相互作用在航空航天、风能生产和运输等重要应用中具有重要意义。这些现象是多物理场的，其特征是复杂的流动和非定常空气动力学。我的研究计划的最终目标是加强目前对这些现象的基本知识，并将成果转移给其他研究人员和最终用户（加拿大工业和政府）。拟议的研究将在舍布鲁克大学（UdeS）的大型风洞中进行。试验段为1.82 m×1.82 m，最高风速为32 m/s。不同参数的影响，如雷诺数和攻角，将进行评估。将研究由此产生的非定常尾流的时空动力学，即涡结构的识别和发展。测量结果将使用一些高科技设备记录，如热线风速仪（HWA）和层析粒子图像测速仪（Tomo-PIV）。**将培训不同层次的高素质人员（HQP）（博士，硕士和本科生）。他们将获得在加拿大许多高科技领域作为流体力学实验方法的高度要求的技能和专业知识。这些HQP将在一个刺激和动态的环境中工作，作为UdeS的机械工程部门，提供补充计划以获得横向能力。**