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

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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.