摘要
文中基于三种重心纵向位置的船模试验,预报了某滑行艇阻力随重心纵向位置的变化规律,并基于重新建模法的数值计算结果分析了产生这种规律的原因.结果表明:过渡阶段,重心向后移动会增加船体阻力,而滑行阶段,则呈现相反的规律.在CFD软件STAR CCM+的帮助下,采用重新建模法对滑行艇的静水绕流场进行数值模拟,通过分析阻力成分、湿表面积、自由面波形,以及船底压力分布等物理参数的数值结果,验证了滑行艇阻力性能随重心纵向位置变化的原因.
Based on the ship model tests of three longitudinal positions of the center of gravity,the variation law of resistance of a planing boat with the longitudinal position of the center of gravity was predicted,and the reasons for this law were analyzed based on the numerical calculation results of the re-modeling method.The results show that the backward movement of the center of gravity will increase the hull resistance in the transition stage;in the sliding stage,the opposite law is presented.With the help of CFD software STAR CCM+,the static water flow field around the planing boat was numerically simulated by re-modeling method.By analyzing the numerical results of physical parameters such as resistance components,wet surface area,free surface waveform and pressure distribution at the bottom of the ship,the reason why the resistance performance of the planing boat changes with the longitudinal position of the center of gravity was verified.
作者
尹晓青
武璇
张元浩
仉永超
刘治国
YIN Xiaoqing;WU Xuan;ZHANG Yuanhao;ZHANG Yongchao;LIU Zhiguo(Weichai Heavy Machinery Co.Ltd.,Weifang 261108,China;Dalian Songliao Shipyard Co.Ltd.,Dalian 116000,China)
出处
《武汉理工大学学报（交通科学与工程版）》
2023年第2期285-289,共5页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
关键词
滑行艇
重心纵向位置
数值计算
重新建模法
planning hull
longitudinal center of gravity
numerical calculation
Rezone&Remesh
