【摘要】 为充分了解超高速气动增升船的断阶构型参数对其减阻作用的影响，基于计算流体动力学（CFD）软件分析不同断阶纵向位置和断阶高度下的船体阻力、纵倾和升沉。计算结果表明：在一定范围内将断阶后置，可减小船舶的航行阻力，但船体纵倾会增大；断阶高度对船体运动阻力的影响，在低速段与高速段表现出截然相反的相关性关系，系列阻力曲线约在船宽弗汝德数FrB=4.0的航速下交会，在此之后，阻力随着断阶高度的增大而迅速减小，而低速阻力随断阶高度的增大而增大。更多还原

【Abstract】 In order to explore the influence of the step configuration parameters of the ultra-high-speed aerodynamic alleviation marine vehicle(AAMV) on its drag reduction, the hull resistance trims and heave at different longitudinal positions and heights steps are analyzed based on the computational fluid dynamics(CFD)software. The calculation results show that moving the step backward within a certain range can reduce the resistance, but trim angle of the hull will increase; And the effect of the step height on the hull motion resistance is diametrically opposite in the low speed section and the high speed section. The series of resistance curves approximately converge at the speed of beam based Froude number(FrB) is 4.0, after that, the resistance decreases rapidly with the increase of the height of the step, while the low-speed resistance increases with the increase of the height of the step.更多还原