中高速深V型船阻力预报方法及尾板减阻机理  

Study on resistance prediction method and resistance reduction mechanism of medium & high speed Deep-Vee ship by stern flap

作　　者：董文才[1] 姚朝帮[1] 

机构地区：[1]海军工程大学舰船与海洋工程系,湖北武汉430033

出　　处：《哈尔滨工程大学学报》2011年第7期848-852,共5页Journal of Harbin Engineering University

基　　金：国家自然科学基金资助项目(50879090)

摘　　要：为了提高深V船阻力性能及预报精度,针对中高速深V型船航行姿态变化显著的特点,采用RANS方程计算船体航行时流场压力分布,通过静力平衡迭代求解船体航行时实际升沉及纵倾,进而计算阻力;模型阻力数值计算和试验结果的对比表明该方法阻力预报误差在2%～4%.深V型船尾板减阻原因来源于3个方面:航行纵倾角的减小、船体压差阻力的减小以及船体"虚长度"的增加.研究获得了深V型船模型阻力减少6.5%的尾板安装方式.To improve the hydrodynamic performance and resistance prediction accuracy of a Deep-Vee ship,a method to calculate the resistance of a Deep-Vee ship sailing at medium and high speed was presented.This method included the prominent influence of dynamic sinkage and trim through the iterative solution of flow field pressure distribution as well as of the sinkage and trim by adopting Fluent software and a hydrostatic equilibrium calculations.The resistance prediction error is about 2% to 4%.The resistance reduction of Deep-Vee ship by the stern flap was due to a decrease of dynamic trim and reduction of the pressure resistance of the hull,as well as an increase in the virtual appendage of the ship.A proper installation method of stern flap for Deep-Vee ship,which can reduce the total resistance of the tested model by 6.5%,was obtained.

关 键 词：深V型船 RANS方程 阻力 尾板减阻 升沉及纵倾 

分 类 号：U661.32[交通运输工程—船舶及航道工程]