RT Journal Article
T1 Coupling an SPH-based solver with an FEA structural solver to simulate free surface flows interacting with flexible structures
A1 Martinez Estevez, Iván
A1 Tagliafierro, B.
A1 El Rahi, J.
A1 Domínguez Alonso, José Manuel
A1 Cabrera Crespo, Alejandro Jacobo
A1 Troch, P.
A1 Gómez Gesteira, Ramon
K1 2204 Física de Fluidos
AB This work proposes a two-way coupling between a Smoothed Particle Hydrodynamics (SPH) model-based named DualSPHysics and a Finite Element Analysis (FEA) method to solve fluid–structure interaction (FSI). Aiming at having a computationally efficient solution via spatial adjustable resolutions for the two phases, the SPH-FEA coupling herein presented implements the Euler–Bernoulli beam model, based on a simplified model that incorporates axial and flexural deformations, to introduce a solid solver in the DualSPHysics framework. This approach is particularly functional and very precise for slender beam elements undergoing large displacements, and large deformations can also be experienced by the structural elements due to the non-linear FEA implementation via a co-rotational formulation. In this two-way coupling, the structure is discretised in the SPH domain using boundary particles on which the forces exerted by fluid phases are computed. Such forces are passed over to the FEA structural solver that updates the beam shape and, finally, the particle positions are subsequently reshuffled to represent the deformed shape at each time step. The SPH-FEA coupling is validated against four reference cases, which prove the model to be as accurate as other approaches presented in literature.
PB Computer Methods in Applied Mechanics and Engineering
SN 00457825
YR 2023
FD 2023-05
LK http://hdl.handle.net/11093/4680
UL http://hdl.handle.net/11093/4680
LA eng
NO Computer Methods in Applied Mechanics and Engineering, 410, 115989 (2023)
NO Ministerio de Ciencia e Innovación | Ref. PID2020-113245RB-I00
DS Investigo
RD 07-ago-2024