SinSEOn Project - Intermediate Report

This report concerns a research activity within a "collaboration framework" between INSEAN and HHI started last year with a JDP agreement. The main results obtained within this collaborative activity by the INSEAN researchers have been reported. The latter concern the SPH simulations of the wet drop experiments for non-corrugated and corrugated panels (Mark III insulation panel). The SinSEOn Project objective is the achievement of sloshing simulations characterized by 3-hours real time duration with realistic severe sea-state forcing. It is stressed in this report that: i) There is an absence of literature for this kind of applications; indeed, there are no publications on the detailed validations of Navier-Stokes solvers for simulating sloshing flows with such long time duration. ii) CPU requirement are very large. Accordingly to the request by HHI to maximize the number of particles to adopt, the spatial resolution is about 400,000 particles with about 10 Millions of time iterations. It is underlined that with this choice the particle size is about 4 mm in model scale while the pressure probe sizes are about 5mm. The time sampling rate is 9 KHz (against the 20 KHz of the experimental sampling rate). The three simulations require about 150 days of calculation on a total of 180 cores. With respect to StarCMM+ or OpenFOAM codes, within the SPH model there is the advantage that only the liquid phase is discretized.