基于快速性和耐波性的倒V型船首改型设计

Design Optimization of Inverted-V Bow Based on Ship Resistance and Seakeeping

为达到船舶减摇、减阻的目的,采用计算流体动力学(CFD)数值模拟仿真计算方法,在倒V形船首的基础上进行船首改型设计。利用商业软件Fine Marine对原型船和改型船的静水阻力、波浪增阻、纵摇幅值、升沉幅值和波浪中的运动响应等进行数值计算,并对计算结果进行对比分析,评价改型效果。计算分析结果表明,改型后船舶的静水阻力、规则波中的升沉和纵摇均有不同程度的减小。

For the purpose of ship resistance and roll reduction, the inverted-V bow modification design is carried out by using CFD numerical simulation. The static water resistance, wave increasing resistance, pitch amplitude, heave amplitude and wave motion response of the prototype and the modification are calculated numerically by the commercial software Fine Marine. The results are compared and analyze to evaluate the modification effect. The calculation results show that the static water resistance, the heave and pitch amplitude on the regular wave are reduced in different degrees after the modification.