某双体客船阻力特性数值仿真分析

石晓川¹，李春阳¹，孙光晓¹，仉永超²，张祥¹，王玉帅¹

1.潍柴动力股份有限公司，山东 潍坊  261061；2.潍柴重机股份有限公司，山东 潍坊  261108

摘要：为获取某双体客船在静水绕流场中的船舶流场数据，更好地进行发动机匹配选型，采用计算流体动力学方法，对船体模型的流体阻力特性进行计算分析，并采用二因次换算法将船模阻力换算至实船阻力。计算结果表明，该双体船的总阻力随着实船航速的提升而增大，航速为32 kn时阻力达到最大，为122.77 kN。使用计算流体动力学软件对船体阻力进行预测具有较高的准确性，可在设计初期对船舶阻力进行预测，并根据预测结果进行船舶主机选型匹配，提高整船效率。

关键词：双体船；船舶阻力；RANS法；计算流体动力学

Numerical simulation analysis of resistance characteristics of a passenger catamaran

SHI Xiaochuan¹, LI Chunyang¹, SUN Guangxiao¹, ZHANG Yongchao², ZHANG Xiang1, WANG Yushuai1

1.Weichai Power Co., Ltd., Weifang 261061, China;

2.Weichai Heavy Machinery Co., Ltd., Weifang 261108, China

Abstract：In order to obtain the flow field data of a passenger catamaran in calm water for engine matching, the fluid resistance characteristics of the hull model are calculated and analyzed by means of computational fluid dynamics(CFD), and the resistance of the model is converted to the real ship by using the two-dimensional conversion method. The results show that the total resistance of catamaran increases with rise of navigational speed, and the maximum resistance reached 122.77 kN when the speed is 32 kn.It has high reliability and convenienceby using CFD software to predict ship resistance, and it could predict ship resistance at the early stage of design process. According to the above results, the engine of catamaran could be matched appropriately and improve efficiency of the ship.

Keywords:catamaran; ship resistance; RANS method; CFD