梭型车客渡船水动力特性数值预报研究  被引量:1

Numerical Prediction of Hydrodynamic Characteristics of Shuttle Car-Passenger Ferry

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作  者:吕全亮 刘雯玉 徐犇 刘鹏鑫 LYU Quanliang;LIU Wenyu;XU Ben;LIU Pengxin

机构地区:[1]江苏省镇江船厂(集团)有限公司,江苏镇江212000 [2]江苏科技大学船舶与海洋工程学院,江苏镇江212003 [3]江苏省船舶设计研究所有限公司,江苏镇江212003

出  处:《江苏船舶》2020年第2期1-6,29,M0003,共8页Jiangsu Ship

基  金:镇江市重大科技专项(ZD2017001)。

摘  要:针对镇扬车客渡船不同载荷状态下阻力性能,基于粘性流体理论,开展梭型车客渡船水动力特性数值预报研究。首先,利用随体动网格技术开展了A航区和B航区6种状态下车客渡船阻力性能的数值预报;然后,利用三因次法换算至实船阻力,计算不同载况下车客渡船的有效功率;最后,分析了梭型船体表面压力及尾流场分布规律。结果表明:所采用的数值预报方法可准确模拟车客渡船阻力及流场分布规律;利用三因次法将船模数据换算为实船阻力准确性更高;梭型结构的下潜体相对于常规方形底,具有分流减阻效果。Aiming at the resistance performance of Zhenyang car-passenger ferry under different loading conditions,based on the viscous fluid theory,the numerical prediction research on the hydrodynamic characteristics of shuttle car-passenger ferry is carried out.First of all,the numerical prediction of resistance performance of car-passenger ferry under six conditions of A and B navigation areas is carried out by using the following dynamic grid technology;then,the effective power of car-passenger ferry under different loading conditions is calculated by using the tridimensional method converted to the real ship resistance;finally,the distribution regulation of surface pressure and wake field of shuttle hull is analyzed.The results show that the numerical prediction method can accurately simulate the resistance and flow field distribution of the car-passenger ferry;the tridimensional method can be used to convert the ship model data into the real ship resistance with higher accuracy;compared with the conventional square bottom,the submersible of shuttle structure has the effect of shunt and drag reduction.

关 键 词:水动阻力 粘性阻力 数值计算 梭型 车客渡船 三因次法 

分 类 号:U661.1[交通运输工程—船舶及航道工程]

 

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