Experimental Validation of Computational Models in Fluid Structure Interaction An Integrated Approach to Understanding Structural Responses Under Fluid Loading

Fluid-structure interaction (FSI) is a critical phenomenon in various engineering applications, including aerospace, civil, and mechanical engineering, where the interaction between fluid flow and structural dynamics significantly influences performance and safety. This study presents a comprehensive experimental validation of computational models used to simulate FSI scenarios, focusing on the accuracy and reliability of numerical predictions against experimental data. A series of controlled experiments were conducted using a state-of-the-art wind tunnel facility, where flexible structures were subjected to varying fluid flow conditions. The experimental setup included high-speed cameras and advanced measurement techniques such as particle image velocimetry (PIV) to capture the fluid flow characteristics and structural responses in real-time. The results demonstrated a strong correlation between the computational predictions and experimental observations, validating the computational models' ability to accurately capture the complex interactions between fluid and structure. Key parameters such as displacement, stress distribution, and flow patterns were analyzed, revealing insights into the underlying mechanics of FSI. The findings underscore the importance of experimental validation in enhancing the credibility of computational models, ultimately contributing to more reliable design practices in engineering applications. This research not only provides a robust framework for future studies in FSI but also emphasizes the need for continuous refinement of computational techniques to address the challenges posed by complex fluid-structure interactions.