Numerical simulations of wave breakings around a wedge-shaped bow

Flows around a wedge-shaped bow are simulated with the aim of investigating the wave breaking mechanism and small scale features of ship bow waves. The wedge geometry used in the experimental study of Waniewski et al. (2002) is chosen with the flow conditions at Re = 1.64×10 5 and Fr = 2.93. The bow wave structure, wave breaking process and air entrainment are studied. The predicted overall bow wave profile, surface disturbances on the wave crest, and plunging jet shape are similar to the experimental observations. The computed wave contact line elevation is very close to the flume model case of the experiment, but is below the towing tank case. The possible reasons of the under-prediction of the wave elevation are discussed.

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