《Table 7Computational mesh sensitivity for finding peak pressure during wedge drop》

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《排水型船外飘砰击和甲板淹湿的经验估算方法（英文）》

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Mesh sensitivity study is performed for 15°wedge.In case of 2D wedge drop simulations，pressure at the bottom-most point of the wedge is of relevance；hence，the same is measured for various mesh counts in sensitivity study.Table 7shows the measured peak pressure for various mesh counts.It can be observed that pressure varies only by 0.3%by increasing the mesh count from 0.8 M to 1.2 M，i.e.，increasing mesh count beyond 0.8 M has insignificant effect on peak pressure.Computational time is also noted in Table 7.Computations were performed on a 60-core machine（×3650HPC server）.It can be observed that the computational time increases by almost 60%with the mesh count increase from0.5 M to 0.8 M.Further increase of approximately 55%in computational time is noted for mesh count of 1.2 M.Thus total mesh count of 0.8 M is used for numerical simulation of15°wedge considering insignificant change in computed peak pressure and considerably higher computational time for increased mesh count.For other wedges，i.e.，25°and 30°，total mesh count of nearly 1 M is used.The mesh count was increased for higher wedge angle based on the increase in width and depth of the wedge model used.Meshing strategy with overset mesh and refinement around the wedge and at the waterline to capture the swell was used for the computation.The computational mesh is shown in Fig.17.The time step of2e-4 s is chosen so as to not miss out on the accuracy in capturing the swell-up with Courant number of less than 1maintained in each case.