Real-world Aerodynamic Interaction between a Multi-Element Inverted Wing and Rotating Wheel in Ground Effect

地面效应中多元件倒立翼与旋转轮之间的真实气动相互作用

• 批准号: 2165954
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2165954
• 关键词: Real; world; Aerodynamic; Interaction; between

The aerodynamic interaction between an inverted wing and a rotating wheel in ground effect is a critical aerodynamic development area for a race-car. It plays a potentially significant role in the ability of one car to closely follow and pass another which is attractive to spectators and therefore important to the sport as a viable business. The physical phenomena involved, such as vortex dynamics and the true simulation of cornering, are also highly interesting to the wider field of aerodynamics. Whilst some previous work has been carried out regarding the interaction in a straight-line condition, the interaction between these components in a cornering condition has yet to be thoroughly examined. This coupled with the fact that the interaction between these components in cornering conditions is of a higher importance, as this is where the downforce generated is needed, makes this research particularly relevant. The primary investigation to be performed in this research, via both experimental and numerical methods, is to investigate the aerodynamic interaction between a multi-element inverted wing and rotating wheel in ground effect. This will be done in the straight-line and steady-state yaw angle conditions, which are typically used to assess cornering currently, before moving on to assess 'real world' effects. These will include the difference between steady-state yaw conditions and true cornering conditions, i.e. the vehicle taking a curved path through the air, and how the interaction between these two scenarios differ. The difference between the 'clean' onset conditions, usually assumed in both experiment and simulation, and the perturbed conditions experienced in the real world will also be investigated. As well as the influence on the aerodynamic forces produced, the behaviour of the vortices and other flow structures produced downstream of the geometry will be investigated both numerically and experimentally.

地面效应中倒置机翼和旋转轮之间的空气动力学相互作用是赛车空气动力学发展的关键领域。它对于一辆车紧跟并超越另一辆车的能力发挥着潜在的重要作用，这对观众有吸引力，因此对这项运动作为一项可行的业务很重要。所涉及的物理现象，例如涡流动力学和转弯的真实模拟，对于更广泛的空气动力学领域也非常有趣。虽然之前已经针对直线条件下的相互作用进行了一些工作，但这些部件在转弯条件下的相互作用尚未得到彻底检查。再加上这些部件在转弯条件下的相互作用更加重要，因为这是需要产生下压力的地方，使得这项研究特别有意义。本研究的主要研究内容是通过实验和数值方法，研究地面效应中多元件倒置机翼和旋转轮之间的空气动力相互作用。这将在直线和稳态偏航角条件下完成，这些条件通常用于评估当前的转弯，然后再继续评估“现实世界”的影响。这些将包括稳态偏航条件和真实转弯条件之间的差异，即车辆在空中采取弯曲路径，以及这两种情况之间的相互作用如何不同。还将研究实验和模拟中通常假设的“干净”起始条件与现实世界中经历的扰动条件之间的差异。除了对产生的空气动力的影响之外，还将通过数值和实验研究几何下游产生的涡流和其他流动结构的行为。