Turbine performance and optical fluid velocity measurements with application to dynamic transient flow over large scale wind turbine blades

这项研究的主要目标是在受控环境下对大型风力机进行实验，并应用基于激光的光学流动测量技术，如流动可视化、激光多普勒测速和粒子图像测速(PIV)，对风力机叶片周围形成的速度场进行详细测量。风力机空气动力学的实验研究在降低成本和降低噪声的同时，有可能提高风力机的运行效率和效率。由于风力资源是可变的，涡轮机在大范围的动态运行条件下运行。由于涡轮机本身的规模，研究涡轮机在实际条件下的性能以及在可能对建模、验证和设计有用的尺度上的研究并不常见。在这项提案中，将从风力机在各种受控条件下的运行条件下收集速度和声学数据，以了解流动的行为，为流动的模型开发和计算流体力学(CFD)模拟提供高质量的验证数据，并可靠地量化上述影响，以便纳入新的设计工具。

The primary objective of the research in this proposal is to perform experiments on large scale wind turbines in a controlled environment and apply laser based optical flow measurement techniques such as flow visualization, laser Doppler velocimetry, and particle image velocimetry (PIV) to make detailed measurements of the velocity fields developed around the wind turbine blades. Experimental studies of wind turbine aerodynamics have the potential to improve the operation and efficiency of turbines while reducing costs and decreasing noise. As the wind resource is variable turbines operate over a large range of dynamic operating conditions. Studies of turbine performance over realistic conditions, and at a scale that may be useful for modeling, validation and design are not common due to the scale of turbines themselves. In this proposal velocity and acoustic data will be collected from a wind turbine under various operating conditions in controlled conditions in order to understand the behaviour of the flow, provide high quality validation data for model development and computational fluid dynamic (CFD) simulations of the flow and reliably quantify the above effects for inclusion in new tools for design.