Leopoldo Ancora
Numerical and experimental studies on fluid-structure interactions
Numerical and experimental studies on fluid-structure interactions
Abstract della ricerca
Numerical and experimental studies on fluid-structure interactions
Background nella ricerca
Fluid–structure interaction is a central theme in coastal engineering, particularly in the study of interactions between waves and marine structures. The development of numerical models has enabled significant advances in the simulation of hydrodynamic processes; however, estimating the loads induced by breaking waves remains one of the main challenges. In fact, numerical models have limitations in describing wave breaking and phenomena characterized by free surfaces that fracture or assume complex geometries. In this context, comparison with experimental data is essential for model validation and the reduction of uncertainties, highlighting the need for integrated numerical-experimental approaches.
Obiettivi della ricerca
The research objectives are focused on advancing the techniques and tools currently used in the numerical and experimental study of the hydrodynamic processes involved in fluid–structure interaction. Particular attention is given to the critical analysis of existing methodologies, with the aim of identifying the most effective approaches for the problem at hand. The research also aims to develop specific adaptations and solutions tailored to the application context and engineering objectives, with the goal of improving the reliability of analyses and the effectiveness of predictive tools to support design.
Metodi
The research is based on an integrated numerical-experimental approach to the study of fluid–structure interaction. Numerical methods include free-surface CFD models, used to simulate wave propagation and breaking and the resulting response of structures. Experimental activities are conducted through laboratory tests, involving the acquisition of data on wave motion, pressures, and applied loads. The systematic comparison between simulations and experimental measurements enables model validation, uncertainty analysis, and the refinement of methodologies tailored to specific application objectives.
Risultati
The results obtained include the validation of a WCSPH numerical model through the simulation of a dam break test, with a comparison of pressures and free-surface elevations against experimental data from the literature. The good agreement observed confirms the model’s reliability in reproducing transient phenomena characterized by complex free surfaces. Expected results include extending the method to the study of fluid–structure interactions, supported by comparisons with experimental data and other numerical models, in order to evaluate its accuracy, limitations, and scope of applicability.