基于重叠网格的船舶航向稳定性数值研究
Numerical Study on Ship's Heading Stability Based on Over-set Grid
贾爱鹏 1彭晓星 1戚建祥 1吴晓红1
作者信息
- 1. 浙江国际海运职业技术学院,浙江舟山 316021
- 折叠
摘要
基于重叠网格技术,采用URANS粘性数值模拟方法,对标准船模KVLCC2裸船体的航向稳定性进行了数值预报.基于STAR-CCM+平台,采用重叠网格技术和切割体网格,根据SIMMAN2014提供的标准算例,对KVLCC2进行了斜航运动和纯艏摇运动的数值模拟,得到了横向力和转首力矩的历时曲线,并根据操纵性数学模型推倒出水动力导数,并计算稳定性衡准数,所有计算结果同模型试验数据吻合较好,验证了采用当前处理方法预报航向稳定性的可靠性.
Abstract
Based on the Over-setgrid and URANS viscous numerical simulation method,the directional stability of the standard ship model KVLCC2 in bare hull condition is pre-dicted.The numerical computations in this study were performed on the STAR-CCM+,using the over-setgrid and trimmed mesh.According to the SIMMAN2014,the KVLCC2 in oblique motion and pure yaw motion were numerical simulated,the time histories of lat-eral force and yawing moment were obtained.According to the maneuvering mathematical model,the hydrodynamic derivatives were obtained and course stability index was calculat-ed.All numerical results were in good agreement with model test data,which indicated that the reliability of the current approach for predicting directional stability.
关键词
重叠网格/斜航运动/纯艏摇运动/航向稳定性Key words
over-set grid/oblique motion/pure yaw motion/directional stability引用本文复制引用
出版年
2024
NETL
NSTL
万方数据