Sun, S.; Qi, C., and Zhao, X., 2015. Investigation of turbulence models for hydrodynamics calculation and flow field analysis of hybrid monohull.

The installing of semi-submerged body under the bow can improve the longitudinal motion performance of the ship effectively, and the viscous damping generated by the semi-submerged body has great effect of reducing rocking. Considering the viscous damping, the hydrodynamic coefficients of the hull were calculated by means of RANS method in this paper. The hydrodynamic coefficients were calculated by 3-D method respectively and the influence of different turbulence models on the calculation results for hydrodynamic was discussed. The result was analyzed and compared with the one calculated by means of source/dipole mixed-distribution method. Besides, the calculation efficiency for the different meshing methods and turbulence models of the three dimensional RANS method was discussed. It was confirmed in this paper that the RANS method is applicable to obtain the hydrodynamic coefficients of the hull adding the semi-submerged body by calculations.

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© 2015 Coastal Education and Research Foundation
2015
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