RANS prediction of the KVLCC2 tanker in head waves

摘要：

The present study is devoted to the computation of the KVLCC2 tanker in head wave with free heave and pitch motion. A RANS solver using finite-volume discretization and free-surface capturing approach is employed for the computation. Free ship motion is captured with a mesh deformation approach. Three different wave lengths (0.6Lpp, 1.1Lpp and 1.6Lpp) are computed. We focus on numerical uncertainty estimation in this paper. For each test case, three different meshes and at least three different time steps have been used to access both time and spatial discretization error. Additional computations with different setups aimed at identifying different numerical discretization errors will also be performed. It is demonstrated that special attention needs to be paid to time discretization. To keep the same time accuracy, time step needs to be reduced on fine mesh for such kind of unsteady free-surface computation involving important pitch or roll motion.

关键词： Head waves free-surface capturing deforming mesh pitch motion uncertainty estimation

作者: G.B. Deng P.Queutey M.Visonneau1

作者单位: E.M.N,L.M.F-UMR6598,Ecole Centrale de Nantes 1,Rue de la Noe,Nantes,France

会议类型: 国际会议

会议名称: 9th International Conference on Hydrodynamics(第九届国际水动力学会议 ICHD2010)

会议地点: 上海

会议语种:英文

页码: 473-478

在线出版日期: 2010-10-11（万方平台首次上网日期，不代表论文的发表时间）