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Wind speed inference from environmental flow-structure interactions

Cardona, Jennifer L. and Bouman, Katherine L. and Dabiri, John O. (2020) Wind speed inference from environmental flow-structure interactions. . (Unpublished)

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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.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper ItemData
Bouman, Katherine L.0000-0003-0077-4367
Dabiri, John O.0000-0002-6722-9008
Additional Information:The authors would like to thank Peter Gunnarson, Berthy Feng, and Emily de Jong for their assistance in running wind tunnel experiments, and Matthew Fu for his thoughtful comments and discussion. This work was supported by the National Science Foundation (grant CBET-2019712), and by the Center for Autonomous Systems and Technologies at Caltech. The authors report no conflict of interest. Data Availability Statement. The data discussed in this work will be made available at the Stanford Digital Repository at Author Contributions. Conceptualization: JLC; KLB; JOD. Methodology: JLC; JOD. Investigation: JLC. Software: JLC. Data analysis: JLC; JOD. Funding acquisition: KLB; JOD. Supplementary Material. Additional information can be found in the supplementary material.
Group:Astronomy Department, GALCIT, Center for Autonomous Systems and Technologies (CAST)
Funding AgencyGrant Number
Center for Autonomous Systems and TechnologiesUNSPECIFIED
Subject Keywords:Flow imaging and velocimetry, optical based flow diagnostics, fluid-structure interactions
Record Number:CaltechAUTHORS:20210604-142548826
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:109397
Deposited By: George Porter
Deposited On:07 Jun 2021 14:31
Last Modified:07 Jun 2021 14:31

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