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Coupled particle-mesh model for the interaction between free surface flows and deformable structures

Grant number: 21/11429-4
Support Opportunities:Scholarships in Brazil - Post-Doctorate
Effective date (Start): February 01, 2022
Effective date (End): January 31, 2024
Field of knowledge:Physical Sciences and Mathematics - Mathematics - Applied Mathematics
Principal Investigator:Fabrício Simeoni de Sousa
Grantee:Rubens Augusto Amaro Junior
Host Institution: Instituto de Ciências Matemáticas e de Computação (ICMC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry, AP.CEPID

Abstract

In most applications of engineering the fluid-structure interaction (FSI) phenomena are of great importance due to safety, reliability, efficiency, or durability issues. Aiming to develop numerical solutions or computational techniques capable of solving FSI problems, the mesh-based methods have been the most widespread approaches. However, free-surface flow problems require boundary tracking or remeshing techniques, which increases the computational cost and numerical complexity. To overcome these issues, meshless methods have been developed in recent years, providing new perspectives for the modeling of FSI problems. Since the required model complexity and forthcoming number of degrees of freedom may be drastically distinct for solid and fluid domains, numerical modeling considering independent fluid and solid resolutions are desirable. In this way, the objective of the present work is to investigate and improve the coupling between meshless particle-based and mesh-based methods (Finite Element Method - FEM) by using boundary integral models, aiming to improve the numerical accuracy in a high-performance computational environment to accelerate large scale applications of the interaction between free-surface flow and complex deformable structures.

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