论文标题

环境流程结构相互作用的风速推断

Wind speed inference from environmental flow-structure interactions

论文作者

Cardona, Jennifer L., Bouman, Katherine L., Dabiri, John O.

论文摘要

这项研究旨在利用流体动态载荷与产生的结构变形之间的关系,以从时间依赖性结构运动学的测量值中推断入射流速。对悬臂缸和树木进行了风洞研究。在时间序列数据中捕获了风加载结构的尖端偏转,并应用力与挠度之间关系的物理模型来计算相对于已知的参考风速归一化的瞬时风速。从视觉测量中推断出的风速显示与不同的圆柱体和树构型的地面真相量表测量一致。这些结果提出了一种非侵入性,定量流量限制的方法,该方法消除了直接可视化或仪器流动本身的需求。

This study aims to leverage the relationship between fluid dynamic loading and resulting structural deformation to infer the incident flow speed from measurements of time-dependent structure kinematics. Wind tunnel studies are performed on cantilevered cylinders and trees. Tip deflections of the wind-loaded structures are captured in time series data, and a physical model of the relationship between force and deflection is applied to calculate the instantaneous wind speed normalized with respect to a known reference wind speed. Wind speeds inferred from visual measurements showed consistent agreement with ground truth anemometer measurements for different cylinder and tree configurations. These results suggest an approach for non-intrusive, quantitative flow velocimetry that eliminates the need to directly visualize or instrument the flow itself.

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