RANSE Simulations of a Naval Combatant in Head Waves
Résumé
The paper presents a set of viscous computations for a fixed or free pitch and heave surface combatant David-Taylor model basin (DTMB 5512) advancing in head waves. A detailed comparison on the forces coefficients, the phase-averaged free-surface elevations when available, between simulation and experiments will be shown for the fixed ship at moderate (Fr=0.28) and high (Fr=0.41) Froude number, demonstrating an excellent agreement. With a unique viscous computational tool, it will be proved that it is possible to compute implicitly radiated and diffracted waves. Even for the medium speed test case (Fr=0.28), the computational results demonstrate that the radiated bow and stern waves associated with the heave and pitch of the ship can not be neglected.
Références
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