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We propose to simulate wave propagation by an artificial low Mach compressibility model. The capture of the air-water interface is ensured by a second order finite volume scheme (Godunov) in time and space. As we intend to simulate three-dimensional flow, we use a subdomain method combined with parallel computing. The energy equation is successfully replaced by an isothermal model (conservative or not). This approach, already validated by a numerical/experimental confrontation, is thus optimized in computational time. We will finally describe two applications: wave propagation and solitary wave breaking over an 15% slope.

Ecoulement multiphasique tridimensionnel par un schéma « faible Mach » - Application au déferlement