变航态推进器设计及水动力性能分析
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摘要
为了改善变航态推进器的推进性能,设计了一种将前桨和后桨集成安装的水下变航态推进器.该变航态推进器采用了高速航态前桨和低速航态后桨相结合的方式,通过两个螺旋桨的转速匹配来提高推进性能.使用切割体网格划分方式对流场域进行网格划分,对推进器周围的流场进行网格加密,采用滑移网格实现螺旋桨的旋转.使用雷诺时均-斯托克斯(RANS)方法对变航态推进器的水动力特性进行了分析.从数值模拟结果可以看出:转速匹配有利于水动力性能的提升,但由于存在摩擦阻力,转速匹配不能完全抵消高速螺旋桨引入所带来的水动力性能下降;同时,旋转的前桨有助于降低后桨表面受到的不定常力.
To improve the low-speed state propulsion performance of a multi-working thruster,an underwater variable aerodynamic propulsion device with front and rear propellers integrated installation was designed.The multi-working thruster adopted a combination of a high-speed state propeller and a low-speed state propeller,and the rotating speed of the two propellers was matched to improve the propulsion performance in different sailing speed.The propeller performance is improved by matching the rotational speed of two propellers.The hydrodynamic characteristics of the multi-working thruster were analyzed by Reynolds average Navier-Stokes method.It can be observed from the numerical simulation results that the application of rotating speed matching conducive to improving the hydrodynamic characteristics.However,due to the inevitable frictional resistance,the rotating speed matching cannot completely offset the installation of high-speed propellers.Rotating front propeller helps to reduce the unsteady force on the rear propeller surface.
To improve the low-speed state propulsion performance of a multi-working thruster,an underwater variable aerodynamic propulsion device with front and rear propellers integrated installation was designed.The multi-working thruster adopted a combination of a high-speed state propeller and a low-speed state propeller,and the rotating speed of the two propellers was matched to improve the propulsion performance in different sailing speed.The propeller performance is improved by matching the rotational speed of two propellers.The hydrodynamic characteristics of the multi-working thruster were analyzed by Reynolds average Navier-Stokes method.It can be observed from the numerical simulation results that the application of rotating speed matching conducive to improving the hydrodynamic characteristics.However,due to the inevitable frictional resistance,the rotating speed matching cannot completely offset the installation of high-speed propellers.Rotating front propeller helps to reduce the unsteady force on the rear propeller surface.
引文
[1]杨秀勇,王伟,陈佳耀,等.舟山地区多工况拖网渔船导管螺旋桨市场调研报告[J].中国水运,2013,13(6):17-18.
[2]王绍敏,贺伟,陈克强.低速作业工况船模拖带自航试验[J].船海工程,2014,43(6):74-77.
[3]张巧芬.船舶柴油推进装置多工况数学模型及轮机实操评估系统研究[D].大连:大连海事大学图书馆,2016.
[4]刘英良.超大型集装箱船多工况点的最佳方形系数范围探索[J].船舶,2014(1):21-24.
[5]钱渊.双速-全功率推进系统在多工况船上的应用[J].江苏船舶,1991,8(1):13-21.
[6]王艳龙.基于CFD的双速比导管螺旋桨性能研究[D].大连:大连理工大学图书馆,2011.
[7]胡健,黄胜,王陪生,等.可调螺距螺旋桨水动力性能分析[J].船舶工程,2007,29(6):41-45.
[8]曾志波.高速水面舰船多工况螺旋桨叶剖面优化设计[J].中国造船,2018,59(1):26-35.
[9]常欣,孙帅,王超,等.考虑非设计工况的螺旋桨优化设计方法[J].哈尔滨工程大学学报,2015,36(12):1544-1548.
[10]王国强,刘岳元,曹梅亮,等.简易导管螺旋桨[J].中国造船,1978,19(1):3-21.
[11]许和勇,叶正寅.涵道螺旋桨与孤立螺旋桨气动特性的数值模拟对比[J].航空动力学报,2011,26(12):2820-2825.
[12]李超,谢勇和,王立军.导管参数对导管螺旋桨水动力性能影响研究[J].船舶,2012,23(5):17-22.
[13]王福军.计算流体动力学分析[M].北京:清华大学出版社,2004.
[14]胡俊明,李铁骊,林焰,等.基于RANS法螺旋桨毂帽鳍水动力性能数值研究[J].船海工程,2015,44(1):52-55.
[15]MENTER F R.Two-equation eddy-viscosity turbulence models for engineering applictions[J].AIAA J,1994,32:1598-1605
[16]ROBERTO M,GIULIO D,DI M A.Analysis of the flow field around a rudder in the wake of a simplified marine propeller[J].Journal of Fluid Mechanics,2017,814:547-569.
[17]张凯奇,叶金铭,于安斌.不均匀进流场下螺旋桨非定常力的数值模拟[J].舰船科学技术,2018,40(S1):33-38.
[18]王展智,熊鹰,齐万江.对转螺旋桨敞水性能数值预报[J].华中科技大学学报(自然科学版),2012,40(11):77-80.
[19]李允.不同工况下的对转桨性能预报及非同步对转桨性能分析[D].哈尔滨:哈尔滨工程大学图书馆,2015.
[2]王绍敏,贺伟,陈克强.低速作业工况船模拖带自航试验[J].船海工程,2014,43(6):74-77.
[3]张巧芬.船舶柴油推进装置多工况数学模型及轮机实操评估系统研究[D].大连:大连海事大学图书馆,2016.
[4]刘英良.超大型集装箱船多工况点的最佳方形系数范围探索[J].船舶,2014(1):21-24.
[5]钱渊.双速-全功率推进系统在多工况船上的应用[J].江苏船舶,1991,8(1):13-21.
[6]王艳龙.基于CFD的双速比导管螺旋桨性能研究[D].大连:大连理工大学图书馆,2011.
[7]胡健,黄胜,王陪生,等.可调螺距螺旋桨水动力性能分析[J].船舶工程,2007,29(6):41-45.
[8]曾志波.高速水面舰船多工况螺旋桨叶剖面优化设计[J].中国造船,2018,59(1):26-35.
[9]常欣,孙帅,王超,等.考虑非设计工况的螺旋桨优化设计方法[J].哈尔滨工程大学学报,2015,36(12):1544-1548.
[10]王国强,刘岳元,曹梅亮,等.简易导管螺旋桨[J].中国造船,1978,19(1):3-21.
[11]许和勇,叶正寅.涵道螺旋桨与孤立螺旋桨气动特性的数值模拟对比[J].航空动力学报,2011,26(12):2820-2825.
[12]李超,谢勇和,王立军.导管参数对导管螺旋桨水动力性能影响研究[J].船舶,2012,23(5):17-22.
[13]王福军.计算流体动力学分析[M].北京:清华大学出版社,2004.
[14]胡俊明,李铁骊,林焰,等.基于RANS法螺旋桨毂帽鳍水动力性能数值研究[J].船海工程,2015,44(1):52-55.
[15]MENTER F R.Two-equation eddy-viscosity turbulence models for engineering applictions[J].AIAA J,1994,32:1598-1605
[16]ROBERTO M,GIULIO D,DI M A.Analysis of the flow field around a rudder in the wake of a simplified marine propeller[J].Journal of Fluid Mechanics,2017,814:547-569.
[17]张凯奇,叶金铭,于安斌.不均匀进流场下螺旋桨非定常力的数值模拟[J].舰船科学技术,2018,40(S1):33-38.
[18]王展智,熊鹰,齐万江.对转螺旋桨敞水性能数值预报[J].华中科技大学学报(自然科学版),2012,40(11):77-80.
[19]李允.不同工况下的对转桨性能预报及非同步对转桨性能分析[D].哈尔滨:哈尔滨工程大学图书馆,2015.