数据驱动在导管桨斜流工况分析中的应用  

Application of Data Driven for Ducted Propeller Analysis in Oblique Flow

作　　者：马津伟[1] 吴建[2] 王红军 MA Jinwei;WU Jian;WANG Hongjun(Continuing Education College,Zhumadian Vocational and Technical College,Zhumadian 463000,Henan,China;Southwest Jiaotong University,Chengdou 611756,China;Guang'an Vocational and Technical College,Guang'an 638000,Sichuan,China)

机构地区：[1]驻马店职业技术学院继续教育学院,河南驻马店463000 [2]西南交通大学,成都611756 [3]广安职业技术学院,四川广安638000

出　　处：《船舶工程》2022年第9期70-75,共6页Ship Engineering

基　　金：国家自然科学基金(61773324,61603313)。

摘　　要：基于湍流模型SSTk-ω和滑移网格技术对不同斜流角(0°、10°和20°)和不同进速系数J(0.3、0.5和0.7)下导管螺旋桨的水动力参数、轴承力和速度场进行对比分析。为解决传统计算流体力学方法存在的耗费大量时间及需要大量网格等问题,提出一种快速且准确率高的深度学习模型CNN-LSTM对导管螺旋桨进行高效准确预测。研究结果表明:随着斜流角和进速系数的增大,导管螺旋桨的轴承力的波动幅度和峰值均增大。数据驱动模型CNN-LSTM不仅能够使得预测值较好地吻合CFD值,也能准确预测不同斜流角及不同进速系数下的相位差以及峰值差异,结果显示较大的差异出现在轴承力的波峰和波谷处。最后,文章还分析了斜流角和进速系数对导管桨间隙流场的影响。The hydrodynamic force,bearing force,and velocity field of the ducted propeller under different oblique flow angles(0°,10°,20°)and different advance speed coefficients J(0.3,0.5,0.7)are compared and analyzed by using turbulence model SST and slip grid technology.A fast and accurate deep learning model CNN-LSTM is proposed to efficiently and accurately predict bearing force of ducted propellers in order to solve the problems of traditional computational fluid dynamics methods that consume a lot of time and require a large number of grids.The research results show that:The fluctuation amplitude and peak value of the bearing force of the ducted propeller increase with the oblique flow angle and the advance ratio.The data-driven model CNN-LSTM can not only make the predicted value better match the CFD value,but also accurately predict the phase difference and crest difference under different oblique flow angles and different advance ratio,the larger differences appear at the crest and trough of the bearing force.Finally,the influence of oblique flow angle and advance ratio on the flow field of the ducted propeller gap is also analyzed.

关 键 词：导管螺旋桨 数据驱动 斜流 性能预测 

分 类 号：U664.31[交通运输工程—船舶及航道工程]