Phenomenon of air compressibility in air-water systems, benchmarking a two-phase numerical model

In the context of developing accurate numerical tools (both experimental and numerical) for the simulation of Oscillating Water Column (OWC) wave energy converters, the present work deals with the benchmarking of a multi-phase, compressible numerical code based on Computational Fluid Dynamic (CDF) techniques. The effect of air compressibility on the OWC dynamics is, in fact, a relevant and open issue in the field. The benchmark tests proved the good capability of the solver to deal with air compressibility effects.