混合对转推进系统水动力性征数值研究
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摘要
[目的]为研究混合对转推进系统的推进性能,[方法]采用滑移网格方法,分别对螺旋桨、吊舱推进器、混合对转推进系统的水动力性征进行数值模拟,分析混合对转推进系统中各推进成分相对于其单独工作时的水动力性征差异,研究混合对转推进系统中各部分之间的相互影响规律。[结果]结果表明:在混合对转推进系统中,后桨对前桨的抽吸作用导致前桨推力系数、转矩系数、敞水效率随进速系数的减小而减小,与单独螺旋桨的变化趋势不同;吊舱和桨毂的阻塞效应以及前桨非定常尾流对后桨的干扰作用,导致后桨推力系数、转矩系数及敞水效率与单独吊舱推进器的结果不同;混合对转推进系统效率低于单独螺旋桨,未能体现后桨对前桨尾流的吸能作用,因此在混合对转推进系统的设计研究工作中,需要进一步考虑前、后桨几何参数的匹配问题。[结论]研究结果可为混合对转推进系统的优化设计和工程应用提供参考。
[Objectives]In order to study the propulsion performance of the hybrid contra-rotating propeller,[Methods]the hydrodynamic characteristics of the propeller,the podded propeller and the hybrid contra-rotating propeller(CRP) are numerically simulated by using sliding mesh method respectively,the differences in the hydrodynamic characteristics of each propulsion component in the hybrid CRP compared to those of the entire hybrid CRP are analyzed in detail,and the interaction between various parts of the hybrid CRP is studied.[Results]The results show that the thrusting coefficient,the torque coefficient and the open water efficiency of the forward propeller decrease as the speed coefficient decreases due to the suction effect of the rear propeller on the forward propeller in the hybrid CRP,in which the trend is different from that in the single propeller. The thrusting coefficient,the torque coefficient and the open water efficiency of the rear propeller are different from those of the single podded propeller due to the blocking effect of pod and hub and the interference effect of unsteady wake of the forward propeller on the rear propeller. The calculated efficiency of the hybrid CRP is lower than that of the single propeller,and the energy absorption effect of the rear propeller on the forward propeller wake is not reflected. Therefore,the matching of the geometry parameters of the forward and rear propellers should be further considered in the design and study of the hybrid CRP.[Conclusions]This study results can provide reference for the optimal design and engineering application of the hybrid CRP.
[Objectives]In order to study the propulsion performance of the hybrid contra-rotating propeller,[Methods]the hydrodynamic characteristics of the propeller,the podded propeller and the hybrid contra-rotating propeller(CRP) are numerically simulated by using sliding mesh method respectively,the differences in the hydrodynamic characteristics of each propulsion component in the hybrid CRP compared to those of the entire hybrid CRP are analyzed in detail,and the interaction between various parts of the hybrid CRP is studied.[Results]The results show that the thrusting coefficient,the torque coefficient and the open water efficiency of the forward propeller decrease as the speed coefficient decreases due to the suction effect of the rear propeller on the forward propeller in the hybrid CRP,in which the trend is different from that in the single propeller. The thrusting coefficient,the torque coefficient and the open water efficiency of the rear propeller are different from those of the single podded propeller due to the blocking effect of pod and hub and the interference effect of unsteady wake of the forward propeller on the rear propeller. The calculated efficiency of the hybrid CRP is lower than that of the single propeller,and the energy absorption effect of the rear propeller on the forward propeller wake is not reflected. Therefore,the matching of the geometry parameters of the forward and rear propellers should be further considered in the design and study of the hybrid CRP.[Conclusions]This study results can provide reference for the optimal design and engineering application of the hybrid CRP.
引文
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[4]沈兴荣,蔡跃进,蔡荣泉,等.吊舱式推进器水动力性能研究综述[J].船舶力学,2011,15(1/2):189-197.Shen X R,Cai Y J,Cai R Q,et al.Summarization of hydrodynamics performance study of podded propulsor[J].Ship Mechanics,2011,15(1/2):189-197(in Chinese).
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[6]张庆文.吊舱式CRP推进系统发展及应用前景[J].船海工程,2007,36(2):57-60.Zhang Q W.Prospect and utilization of the podded CRP propulsion system[J].Shipbuilding Engineering,2007,36(2):57-60(in Chinese).
[7]汪小翔.混合式CRP吊舱推进器的水动力性能研究[D].哈尔滨:哈尔滨工程大学,2013.Wang X X.Research on the hydrodynamic performance of hybrid CRP podded propulsion[J].Harbin:Harbin Engineering University,2013(in Chinese).
[8]廖慧清,魏海波,李祝清,等.混合电力吊舱式推进系统[J].船电技术,2006,26(1):1-3.Liao H Q,Wei H B,Li Z Q,et al.Hybrid podded propulsion with contra-rotating propellor[J].Marine Electric&Electronic Engineering,2006,26(1):1-3(in Chinese).
[9]盛立,熊鹰.混合式CRP吊舱推进器水动力性能数值模拟及试验[J].南京航空航天大学学报,2012,44(2):184-190.Sheng L,Xiong Y.Numerical simulation and experimentalinvestigation on hydrodynamics performance of hybrid CRP podded propulsion[J].Journal of Nanjing University of Aeronautics&Astronautics,2012,44(2):184-190(in Chinese).
[10]张可,熊鹰,王展智.前后桨间距对吊舱式CRP水动力性能的影响[C]//中国造船工程学会2013年船舶水动力学学术会议论文集.西安:中国造船工程学会,2013:9.
[11]郭春雨,汪小翔,赵大刚,等.吊舱式CRP推进器的定常水动力性能模拟[J].船海工程,2013,42(3):110-114,118.Guo C Y,Wang X X,Zhao D G,et al.Simulation of the steady hydrodynamics performance on podded CRP propulsion[J].Ship&Ocean Engineering,2013,42(3):110-114,118(in Chinese).
[12]盛振邦,刘应中.船舶原理[M].上海:上海交通大学出版社,2004:264.Sheng Z B,Liu Y Z.Ship principles[M].Shanghai:Shanghai Jiao Tong University Press,2004:264.
[2]RICHARDS J,ENGELSKIRCHEN J,PRAEFKE E.Counter rotating propellers without complex shafting for a fast monohull ferry[C]//Proceedings of the 6thInternational Conference on Fast Sea Transportation.Southampton,UK:Springer-verlag,2001.
[3]辛公正,刘登成,施小勇,等.对转吊舱推进器水动力性能预报与模型试验[C]//第二十三届全国水动力学研讨会暨第十届全国水动力学学术会议论文集.西安:中国力学学会,中国造船工程学会,2011:12.Xin G Z,Liu D C,Shi X Y.Numerical prediction and model test of hydrodynamic performance for contra-rotating POD propulsion[C].Proceedings of the 23rd National Conference on Hydrodynamics and 10th National Congress on Hydrodynamics.Xi'an:Chinese Society of Mechanical Engineering,China Shipbuilding Engineering Society,2011:12.
[4]沈兴荣,蔡跃进,蔡荣泉,等.吊舱式推进器水动力性能研究综述[J].船舶力学,2011,15(1/2):189-197.Shen X R,Cai Y J,Cai R Q,et al.Summarization of hydrodynamics performance study of podded propulsor[J].Ship Mechanics,2011,15(1/2):189-197(in Chinese).
[5]范露.吊舱推进器的水动力性能优化设计研究[D].武汉:武汉理工大学,2008.Fan L.Study on optimization design of hydrodynamic characteristics of pod propeller[D].Wuhan:Wuhan University of Technology,2008.
[6]张庆文.吊舱式CRP推进系统发展及应用前景[J].船海工程,2007,36(2):57-60.Zhang Q W.Prospect and utilization of the podded CRP propulsion system[J].Shipbuilding Engineering,2007,36(2):57-60(in Chinese).
[7]汪小翔.混合式CRP吊舱推进器的水动力性能研究[D].哈尔滨:哈尔滨工程大学,2013.Wang X X.Research on the hydrodynamic performance of hybrid CRP podded propulsion[J].Harbin:Harbin Engineering University,2013(in Chinese).
[8]廖慧清,魏海波,李祝清,等.混合电力吊舱式推进系统[J].船电技术,2006,26(1):1-3.Liao H Q,Wei H B,Li Z Q,et al.Hybrid podded propulsion with contra-rotating propellor[J].Marine Electric&Electronic Engineering,2006,26(1):1-3(in Chinese).
[9]盛立,熊鹰.混合式CRP吊舱推进器水动力性能数值模拟及试验[J].南京航空航天大学学报,2012,44(2):184-190.Sheng L,Xiong Y.Numerical simulation and experimentalinvestigation on hydrodynamics performance of hybrid CRP podded propulsion[J].Journal of Nanjing University of Aeronautics&Astronautics,2012,44(2):184-190(in Chinese).
[10]张可,熊鹰,王展智.前后桨间距对吊舱式CRP水动力性能的影响[C]//中国造船工程学会2013年船舶水动力学学术会议论文集.西安:中国造船工程学会,2013:9.
[11]郭春雨,汪小翔,赵大刚,等.吊舱式CRP推进器的定常水动力性能模拟[J].船海工程,2013,42(3):110-114,118.Guo C Y,Wang X X,Zhao D G,et al.Simulation of the steady hydrodynamics performance on podded CRP propulsion[J].Ship&Ocean Engineering,2013,42(3):110-114,118(in Chinese).
[12]盛振邦,刘应中.船舶原理[M].上海:上海交通大学出版社,2004:264.Sheng Z B,Liu Y Z.Ship principles[M].Shanghai:Shanghai Jiao Tong University Press,2004:264.