Abstract
Abstract In this paper, an integrated numerical model with Open-FOAM for the wave-breakwater-seabed interactions problem is presented. Unlike previous studies available in the literature, the present model adopts Biot’s u-p approximation and considers dynamic seabed permeability, which is a function of pore-fluid pressures in the seabed. The proposed model is verified against the existing experimental data. The numerical examples show that dynamic permeability has a significant effect on wave-induced dynamic soil responses, which will cause a deeper and wider liquefaction zone compared with the conventional models with constant permeability. Ignoring the effects of dynamic permeability could significantly impact the transient seabed liquefaction depth and the stability of offshore structures.
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