Parameter Sensitivity for Wave-Breaking Closures in Boussinesq-Type Models

We consider the issue of wave-breaking closure for well-known Green–Naghdi model and attempt at providing some more understanding sensitivity approaches to numerical set-up. More precisely based on Kazolea Ricchiuto (Ocean Model 123:16–39, 2018), we used two strategies modeling a solitary wave over slope. The first one is hybrid method consisting suppressing dispersive terms in breaking region second an eddy viscosity approach solution turbulent kinetic energy model. closures use same conditions triggering mechanisms. Both models themselves case depended/ad/hoc parameters which are affecting while changing. scope this work make indices computed by means analysis variance provide simulation variation such as mesh size specific each performed using UQlab framework uncertainty quantification (Marelli et al., UQLab user manual—sensitivity analysis, Technical report, Chair Risk, Safety Uncertainty Quantification, ETH Zurich, Switzerland, 2019).