文献类型：期刊文献

中文题名：基于动网格与滑移网格混合技术的导管螺旋桨推力研究

英文题名：Research of the Ducted Propeller' Thrust Based on Hybrid Technique of Moving Grid and Sliding Grid

作者：钟乐[1];吴家鸣[1];张恩伟[1];侯玲[2]

机构：[1]华南理工大学土木与交通学院;[2]广东海洋大学海洋工程学院

年份：2017

卷号：37

期号：4

起止页码：105

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：CSTPCD

基金：国家自然科学基金资助项目(11372112)

语种：中文

中文关键词：导管螺旋桨;CFD;动网格;滑移网格;三维运动;诱导速度

外文关键词：ducted propeller; CFD; dynamic mesh; sliding mesh; three-dimensional motion;induced velocity

中文摘要：基于动网格与滑移网格混合技术,采用弹簧光顺与局部网格重构的网格更新方式,基于计算流体力学方法,求解导管螺旋桨流域内的N-S方程,研究不同运动方式下导管螺旋桨推力特性及水动力现象。数值模拟结果和实验结果的比较表明:利用动网格与滑移网格混合技术进行导管螺旋桨推力特性研究方法可行。导管螺旋桨在不同的运动形式下,螺旋桨盘面所感受到的水流进速不同,造成螺旋桨所产生的轴向诱导速度不同,使得导管螺旋桨发出不同的推力。水流进速越大,螺旋桨产生的轴向诱导速度越小,则推力越小;反之,则越大。

外文摘要：Using CFD methods,based on hybrid technique of dynamic mesh and sliding mesh,meshrenewal method for spring smoothing and local mesh reconstruction,solve the N-S equation in the watershed where the propeller is located.Research the thrust characteristics and the hydrodynamicphenomena of the ducted propeller under different modes of motion.Comparison of numericalsimulation results and experimental results shows that,it is feasible to study the thrust characteristics ofthe ducted propeller by using the dynamic grid and the sliding mesh hybrid technique.In differentmodes of motion,the propeller disk surface feel the water flow rate is different,resulting in the propellerproduced different axial induction velocity,making the ducted propeller issued different thrust.Thegreater the water velocity,the smaller the axial induction speed of the propeller,the smaller the thrust.On the contrary,the greater.