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利用FLUENT软件对舰船进行数值模拟,与已有风洞实验数据对比分析,验证数值模拟的准确性.针对滑跃式舰船甲板,讨论不同网格形式对计算结果的影响,发现棱柱层网格可以改善计算过程的收敛特性,提高收敛速度,沿甲板边界的网格细化是采集船首和边界涡产生的关键.通过对全尺寸的滑跃式甲板舰船船型的计算,得到船首分离涡和岛型建筑后面复杂的涡旋结构.结果表明:岛型建筑分离涡计算的准确度直接影响了岛型建筑下游流场的整体特征;船体尺寸和岛形建筑的形状和位置会严重影响船后涡旋的强度和位置.
FLUENT software was used to simulate the ship and compare with the existing wind tunnel experimental data to verify the accuracy of the numerical simulation.For the skiff type ship deck, the effect of different grid forms on the calculation results was discussed and it was found that the prismatic layer network Lattice can improve the convergence property of the calculation process and improve the convergence speed. The mesh refinement along the deck boundary is the key to collect the bow and the boundary vortex.Based on the calculation of full-size skid steer deck ship model, And the complicated vortex structures behind island-shaped buildings.The results show that the accuracy of the isolated vortex of island-type buildings directly affects the overall characteristics of the flow field downstream of the island-type buildings, and the shape and location of hull size and island-shaped buildings will seriously affect the performance of ships Post vortex intensity and position.