中文摘要：

对于高速航行的船舶,由于船体航行姿态变化明显,以该吃水下设计浮态为基准的阻力计算结果并不能准确预报其实际航行阻力。本文针对多体船高速行驶的兴波问题,采用动网格技术实现了基于动力学平衡预报船体航行时姿态变化和阻力计算,研究中就高速行驶的三体船绕流场进行了模拟计算,并和相关实验进行了比较。研究表明动网格技术应用避免了由于船体运动造成流场网格扭曲与计算发散等问题,具有良好的稳定性,该方法充分考虑了船体姿态的影响,对高速多体船的兴波阻力计算预报更为准确。

英文摘要：

Since trim and sinkage are significant while vessels advancing forward with high speed,resistance prediction for vessels in designed upright state may not reflect that of vessels during voyage.The dynamic mesh technique is adopted to coincide with variation of hull gesture in the simulation of flow field around high speed vessel.A simulation of a trimaran is carried out and the result agrees well with the corresponding experimental data.Research shows refined resistance prediction for high speed multi-hull vessels can be obtained by taking hull gesture variation into consideration,and the simulation takes the advantage of the dynamic mesh techniques avoiding grid skewness during iterations and it is quite stable.