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 应用科技  2020, Vol. 47 Issue (2): 1-5, 11  DOI: 10.11991/yykj.201906018 0

### 引用本文

SUN Cong, SONG Kewei, WANG Chao, et al. Self-propulsion simulation of twin screw ship coupling with propeller and rudder[J]. Applied Science and Technology, 2020, 47(2): 1-5, 11. DOI: 10.11991/yykj.201906018.

### 文章历史

Self-propulsion simulation of twin screw ship coupling with propeller and rudder
SUN Cong, SONG Kewei, WANG Chao, GUO Chunyu, GUO Hang
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
Abstract: Aiming at the problem of mutual interference in ship-propeller-rudder integrated coupling simulation, based on the Reynolds average Navier-Stokes (RANS) method, the navigation performance of the DTMB5415 twin-screw ship under cruise and maximum speed was studied by using the sliding mesh technology (SMT) and volume of fluid (VOF) model. The accuracy and feasibility of the calculation method were verified by comparing the simulation results of ship resistance, open water performance of propeller and self-propelled point at the maximum navigation speed with the experimental results. The resistance components, hull pressure distribution and waveform nephogram before and after installation of propeller were analyzed, and the influence of propeller on hull performance was expounded. Based on the fast Fourier transform (FFT), the unsteady performance of the rudder in propeller wake was discussed.
Keywords: twin screw ship    self-propulsion    numerical simulation    coupling    wake filed    thrust deduction    unsteady    open water performance

1 数值计算方法 1.1 湍流模型及离散格式

1.2 几何模型

1.3 计算域及网格划分

2 船模阻力模拟

3 螺旋桨敞水计算

 $Re = \frac{{{b_{0.75R}}\sqrt {{V_A}^2 + {{(0.75{\text{π}} nD)}^2}} }}{\upsilon }$

4 船模自航计算

 ${F_D} = {R_m} - \frac{{{\rho _m}}}{{{\rho _s}}}\frac{{{R_s}}}{{{\lambda ^3}}}$

4.1 螺旋桨对船体阻力的影响

4.2 螺旋桨对船体压力分布的影响

 ${C_P} = \frac{{P - \rho gh}}{{\dfrac{1}{2}\rho V_0^2}}$

4.3 螺旋桨对自由表面波形的影响

4.4 非定常舵力分析