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MESH-IN: A MESHed INlet offline coupling method for 3-D extreme hydrodynamic events in DualSPHysics

Ruffini, Gioele; Domínguez, José M.; Briganti, Riccardo; Altomare, Corrado; Stolle, Jacob; Crespo, Alejandro J.C.; Ghiassi, Bahman; Capasso, Salvatore; De Girolamo, Paolo

MESH-IN: A MESHed INlet offline coupling method for 3-D extreme hydrodynamic events in DualSPHysics Thumbnail


Authors

Gioele Ruffini

José M. Domínguez

Corrado Altomare

Jacob Stolle

Alejandro J.C. Crespo

Bahman Ghiassi

Salvatore Capasso

Paolo De Girolamo



Abstract

Extreme hydrodynamic events, such as those driven by tsunamis, have a significant impact on coastal environments. The Smoothed Particle Hydrodynamics computational method gained popularity in modelling these phenomena. However, high resolution is needed in areas of interest, making coupling techniques popular to reduce computational costs. Herein, a new two-step offline coupling method was developed and validated in DualSPHysics. In step 1, the simulated velocity field and water depth are measured over a two-dimensional meshed surface of a generating domain. In step 2, the interpolated flow variables are used as boundary conditions in a receiving domain with equal or higher resolution. The method was validated by using two different laboratory experiments that are representative of tsunami propagation and inundation inland. The results show a reduction of computational time of up to 17.6 times, with decreasing savings for increasing resolution in the receiving domain. The validation tests showed that the developed method allows to simulate flows in the receiving domains at nearly the same accuracy of the generating domain while also decreasing computational time. When including debris transport, improvements in accuracy occur when doubling the resolution of the receiving domain with respect to the generating domain.

Citation

Ruffini, G., Domínguez, J. M., Briganti, R., Altomare, C., Stolle, J., Crespo, A. J., …De Girolamo, P. (2023). MESH-IN: A MESHed INlet offline coupling method for 3-D extreme hydrodynamic events in DualSPHysics. Ocean Engineering, 268, Article 113400. https://doi.org/10.1016/j.oceaneng.2022.113400

Journal Article Type Article
Acceptance Date Dec 3, 2022
Online Publication Date Dec 17, 2022
Publication Date Jan 15, 2023
Deposit Date Apr 24, 2023
Publicly Available Date Dec 18, 2023
Journal Ocean Engineering
Print ISSN 0029-8018
Peer Reviewed Peer Reviewed
Volume 268
Article Number 113400
DOI https://doi.org/10.1016/j.oceaneng.2022.113400
Keywords Ocean Engineering, Environmental Engineering
Public URL https://nottingham-repository.worktribe.com/output/15924170
Publisher URL https://www.sciencedirect.com/science/article/pii/S002980182202683X

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