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. **

不稳定的三维（3D）流与机翼和虚张声势的相互作用在许多重要应用中具有重大影响，例如航空航天和风能的生产和运输。这些现象是多物理学的，其特征是复杂的流动和不稳定的空气动力学。我的研究计划的最终目标是增强有关这些现象的当前基本知识，并将结果转移到其他研究人员和最终用户（加拿大行业和政府）中。它的封闭测试部分为1.82 m x 1.82 m，气流的最高速度为32 m/s。将评估不同参数的效果，作为雷诺数和攻击角度。将研究所产生的不稳定唤醒的空间时间动力学，即涡流结构的识别和开发。测量结果将使用一些高科技设备记录，因为热线风洞测定法（HWA）和层析成像粒子图像赛车测定法（Tomo-Piv）。他们将获得加拿大许多高科技领域的高度要求的技能和专家，作为流体力学的实验方法。这些HQP将在UDES机械工程部的刺激性和动态环境中发挥作用，在该部门提供互补计划以获得横向能力。 **