桨舵系统非定常水动力性能预报方法研究  

Prediction of unsteady hydrodynamic performance of propeller-rudder systems

作　　者：何苗 黄胜[1] 王超[1] 常欣[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《华中科技大学学报（自然科学版）》2011年第10期41-45,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：教育部博士学科点专项科研基金资助项目(20102304120026);中央高校基本科研业务费专项资金资助项目(HEUCF110106)

摘　　要：基于势流理论,提出了一种求解桨舵系统非定常水动力性能的方法.系统地研究了流场中含2个升力体的面元法理论,建立了相应的数值计算模型.模型中螺旋桨和舵同时求解,二者间的相互干扰通过时域内影响系数的变化进行考虑.以定常计算结果作为非定常计算的初始值,考虑了非定常求解时泄出涡的时间效应.计算了均匀流及非均匀流中桨舵系统非定常水动力性能.若均匀流中计算结果与实验值进行了比较,结果表明:计算值与实验值符合良好,计算方法具有良好的精度,可以有效地预测桨舵系统非定常水动力性能.Based on the potential theory,a new method to predict the unsteady performance of propeller-rudder systems was developed.Panel method including two lifting bodies in flow field was derived,and the numerical solution was also given.Propeller and rudder were solved,and the interactions between them were considered by the influence coefficients in time domain.The results of steady calculation were taken as initial values of unsteady calculation.The time effects of leak vortex were also considered in unsteady computation.Hydrodynamic performances of the propeller-rudder system in uniform and non-uniform flow were calculated using the integrated method.Results of steady calculation were compared with the experimental values.It can be concluded that the results anastomosis well with the experimental data,and the method with higher at precision can be used in predicting the propeller-rudder system performances.

关 键 词：势流理论 面元法 桨舵系统 非定常水动力性能 影响系数 泄出涡 

分 类 号：U661.33[交通运输工程—船舶及航道工程]