The objective of this work to develop a fast and effective in situ sensing and control method for flexible hydrodynamic lifting bodies in complex, multiphase flows. The sensing system is based on embedded strain and accelerometer measurements, which were used to reconstruct the real-time in situ 3-D deformations and off-line modal characteristics of a flexible surface-piercing hydrofoil in multiphase flow. An inverse fluid-structure interaction solver is used to determine the unknown operating conditions, hydrodynamic load distributions, cavitation and ventilation patterns. Good agreements are observed between predictions and measurements. Finally, preliminary experimental results are shown for a new ventilation control method that takes advantage of the measured in situ modal characteristics.
Yin Lu Young, Casey M. Harwood, and Jacob C. Ward, "Sensing and control of flexible hydrodynamic lifting bodies in multiphase flows," Proc. SPIE 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018, 105981N (Presented at SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring: March 07, 2018; Published: 27 March 2018); https://doi.org/10.1117/12.2303821.
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