High-Speed Camera System for the Measurement of Fluid-Structure Interaction in Vortical Flows

需要一套用于三维粒子跟踪速度（3D-PTV）和表面变形测量的高速摄像机。该系统将使我们对复杂分离流动的理解取得重大进展，这些流动与从启动风力涡轮机叶片到称为微型飞行器（MAVs）的鸟类大小的无人机到旋转系统中的分离诱导过渡等应用相关。利用3D-PTV，将首次实现三维、时间分辨速度场和梯度张量的同时体积测量。通过将动量平衡应用于解决的数据集，可以获得完整的动压力场以及沿给定叶片或机翼的截面力。3D-PTV技术将在加拿大首次实施，并将对未来风力涡轮机、MAVS和下一代压缩机的发展产生直接影响。例如，我们对这些流动的更好理解将有助于降低风力涡轮机的制造和维护成本，并有助于正确选址。MAVs将用于警务、气象、搜索和救援、国防和污染物扩散等遥感等无数应用，它将受益于涡旋控制，以提高其阵风承受能力。为了最大限度地提高生产率，该相机系统还可以通过光流技术安排同时进行表面变形测量，从而深入了解耦合流固耦合问题。

A set of high-speed cameras for the application of three-dimensional Particle Tracking Velocitry (3D-PTV) as well as surface deformation measurements is requested. This system will allow for significant advances in our understanding of complex separated flows associated with applications ranging from starting wind-turbine blades to bird-sized drones called Micro Aerial Vehicles (MAVs) to separation-induced transition in rotating systems. With 3D-PTV, simultaneous volumetric measurements of the three-dimensional, time-resolved velocity field and gradient tensor will be attainable for the first time. By applying a momentum balance to the resolved data set, access to the full dynamic pressure field as well as sectional forces along a given blade or wing will be possible. The implementation of 3D-PTV would be a first in Canada and would have immediate impact on the development of future wind turbines, MAVS and next-generation compressors. For instance our improved understanding of these flows would help reduce fabrication and maintenance costs of wind turbines as well as help with proper siting. MAVs, which will be used for a myriad of applications such as remote sensing for policing, meteorology, search and rescue, defence and pollutant dispersion, stand to benefit from vortex control to improve their gust tolerance. For maximum productivity, this camera system can also be arranged for simultaneous surface deformation measurements through optical-flow techniques, thus providing insight into coupled fluid-structure interaction problems.