Large eddy simulation of extreme hydrodynamic forces on structures with mitigation walls using OpenFOAM

Samieh Sarjamee (), Ioan Nistor () and Abdolmajid Mohammadian ()
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Samieh Sarjamee: University of Ottawa
Ioan Nistor: University of Ottawa
Abdolmajid Mohammadian: University of Ottawa

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2017, vol. 85, issue 3, No 18, 1689-1707

Abstract: Abstract The objective of this study is to evaluate the performance of a large eddy simulation (LES) numerical model to assess the influence of mitigation walls with various cross sections on the tsunami-induced loading exerted on a freestanding structure. The validation of the model was performed using laboratory experiment results previously conducted by the second author. The employed experiments simulated a tsunami-like bore at two different impoundment depths, including 55 and 85 cm. The results showed that the one-equation subgrid-scale energy transport LES approach performs better than RANS models such as k-ε, k-ω and LRR and can accurately reproduce experimental data obtained for a wide range of experimental conditions.

Keywords: Hydrodynamic loading; Tsunami; Extreme hydrodynamic forces; OpenFOAM; Force–time histories; Mitigation wall; Large eddy simulation; RANS (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11069-016-2658-5

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