Numerical prediction analysis of propeller exciting force for hull-propeller-rudder system in oblique flow

作者：Sun, Shuai; Li, Liang; Wang, Chao^*; Zhang, Hongyu

来源：International Journal of Naval Architecture and Ocean Engineering, 2018, 10(1): 69-84.

DOI：10.1016/j.ijnaoe.2017.03.005

• Oblique flow
• Hull-propeller-rudder system
• Free surface
• Bearing force
• Numerical simulation

In order to analyze the characteristics of propeller exciting force, the hybrid grid is adopted and the numerical prediction of KCS ship model is performed for hull propeller rudder system by Reynolds-Averaged Navier Stokes (RANS) method and volume of fluid (VOF) model. Firstly, the numerical simulation of hydrodynamics for bare hull at, oblique state is carried out. The results show that with the increasing of the drift angle, the coefficients of resistance, side force and yaw moment are constantly increasing, and the bigger the drift angle, the worse the overall uniformity of propeller disk. Then, propeller bearing force for hull propeller rudder system in oblique flow is calculated. It is found that the propeller thrust and torque fluctuation coefficient peak in drift angle are greater than that in straight line navigation, and the negative drift angle is greater than the positive. The fluctuation peak variation law of coefficient of side force and bending moment are different due to various causes.

• 出版日期2018-1
• 单位中国船舶科学研究中心; 哈尔滨工程大学