全附体多桨船模自航点数值求解方法研究  

Numerical simulation on self-propulsion point of multi-screw ship with appendages

作　　者：孙小帅[1] 董文才[1] 姚朝帮[1] 

机构地区：[1]海军工程大学舰船工程系,武汉430033

出　　处：《海军工程大学学报》2016年第2期40-45,共6页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(50879090);水动力重点基金资助项目(9140A1403071251311044)

摘　　要：针对带附体的四桨双舵船模,采用结构化网格离散全附体模型表面,基于RANS方程求解了船桨舵耦合的复杂粘性流场,数值模拟了主船体阻力试验、螺旋桨敞水试验、全附体模型阻力试验和自航试验,建立了螺旋桨转速自动调节的模型自航点求解方法。该方法的计算结果与试验结果进行了比较分析,结果表明:全附体模型阻力误差小于3.8%,自航点转速误差小于4.3%。As far as the interaction of hull,propeller and rudder is concerned,the viscous flow field around the hull model is investigated based on RANS by using structure grids to discrete the hull model with appendages,four propellers and two rudders.The experiment on hull resistance,open water performance of propeller and self-propulsion of the hull model is numerically simulated.A method to automatically adjust the rotation speed of propeller is proposed by using the user defined function.The comparison between the numerical one and the experimental ones indicate that the error of hull resistance is smaller than 3.7% and the error of rotation speed is smaller than 4.3%.

关 键 词：自航点 多桨船 RANS 全附体 

分 类 号：U661.1[交通运输工程—船舶及航道工程]