【作者】 胡健； 黄胜； 王陪生；

【Author】 HU Jian~1 HUANG Sheng~2 WANG Pei-sheng~3 (1,2,3.Department of shipbuilding,Harbin Engineering University,Harbin,150001,China)

【机构】 哈尔滨工程大学船舶工程学院；

【摘要】 用黏性方法计算了喷水推进器的水动力特性．在质量守恒定理和动量守恒定理的基础上建立不可压缩流体的积分方程,以 SIMPLE 为基本算法,结合速度修正方程和压力修正方程, 求解船舶尾部伴流场,采用基于二方程雷诺数时均方程方法研究喷水推进的湍流模型．用数值方法建立船体的三维数学模型,用混合网格布置方法提高计算精度．分析了船后不同轴向位置和不同半径处的速度场分布,包括轴相、切向伴流和径向半流,并对结果进行了讨论．更多还原

【Abstract】 Calculate the hydrodynamic performance of ship hull with viscous method.On the base of conservation of mass and conservation of momentum,integral equation of incompressible flow was established.Use SIMPLE(Semi-Implicit Method for Pressure-Linked Equations) as basic calculating method combined with velocity-modified equation and pressure-modified equation, velocity field of ship wake was solved.Turbulent model of waterjet propeller was studied by using PANS(Reynolds Averaged Navier-Stokes),Three dimensional model of ship hull was founded and composite grid distribution method was adopted to improve calculating precision.Velocity distribution of ship wake at different radius and axis location was calculated,which include axes wake,tangential wake and radial wake.The calculating result was analyzed.更多还原