小水线面双体船后螺旋桨非定常力特性研究
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摘要
螺旋桨作为船舶主要振源,其非定常性能的研究对于船舶噪声和振动的控制意义重大。该文采用滑移网格技术,基于分离涡模拟方法(DES),对带首尾鳍船桨一体模型开展了螺旋桨非定常力的数值计算,研究了小水线面双体船后螺旋桨的非定常力特性,并通过与试验结果的对比考察了数值计算方法的精度。计算结果表明,螺旋桨受到的三向力和力矩均有明显的叶频特性,其中推力脉动幅值和水平弯矩脉动幅值较大;此外,分析得出了脉动压力和脉动压力幅值在船体表面局部范围内的分布规律,并将多个测点的脉动压力一阶和二阶叶频幅值与试验测量值对比,其中一阶叶频结果与试验值吻合良好。
As the main vibration source of ships,the study of unsteady performance of propeller is of great importance to noise and vibration control.In this paper,the sliding mesh technique is used and a full hull body with fin and propeller is modeled to predict the unsteady forces of propeller based on detached eddy simulation(DES).The unsteady force characteristics of the propeller after the SWATH ship are studied,and the accuracy of the numerical calculation method is examined by comparing with the experimental results.The calculated results show that the propeller forces and torques on three directions have obvious blade frequency characteristics,of which the fluctuation amplitude of the thrust and the horizontal bending moment are larger.In addition,the distribution of fluctuating pressure and fluctuation amplitude in the local area on the hull surface are analyzed in detail.The simulation results for the hull pressure fluctuation are also compared with the experimental results showing good agreement in the amplitude,especially,for the first blade frequency.
As the main vibration source of ships,the study of unsteady performance of propeller is of great importance to noise and vibration control.In this paper,the sliding mesh technique is used and a full hull body with fin and propeller is modeled to predict the unsteady forces of propeller based on detached eddy simulation(DES).The unsteady force characteristics of the propeller after the SWATH ship are studied,and the accuracy of the numerical calculation method is examined by comparing with the experimental results.The calculated results show that the propeller forces and torques on three directions have obvious blade frequency characteristics,of which the fluctuation amplitude of the thrust and the horizontal bending moment are larger.In addition,the distribution of fluctuating pressure and fluctuation amplitude in the local area on the hull surface are analyzed in detail.The simulation results for the hull pressure fluctuation are also compared with the experimental results showing good agreement in the amplitude,especially,for the first blade frequency.
引文
[1]王国强,董世汤.船舶螺旋桨理论与应用[M].哈尔滨,中国:哈尔滨工程大学出版社,2007.WANG Guo-qiang,DONG Shi-tang.Theory and application of ship propeller[M].Harbin,China:Harbin Engineering University Press,2007.
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[7]王超.螺旋桨水动力性能、空泡及噪声性能的数值预报研究[D].哈尔滨工程大学,哈尔滨,中国:2010.WANG Chao.Numerical prediction of the hydrodynamic performance,cavitation and noise performance of Marine propeller[D].Harbin Engineering University,Harbin,China:2010.
[8]JI B,LUO X,PENG X,et al.Numerical analysis of cavitation evolution and excited pressure fluctuation around a propeller in non-uniform wake[J].International Journal of Multiphase Flow,2012,43(43):13-21.
[9]舒敏骅,陈科,尤云祥,等.动网格方法在螺旋桨非定常三向力数值计算中的应用[J].中国舰船研究,2016,11(3):25-31.SHU Min-hua,CHEN Ke,YOU Yun-xiang,et al.Application of the dynamic mesh method in the numerical simulation of unsteady bearing forces of a propeller[J].Chinese Journal of Ship Research,2016,11(3):25-31.
[10]丁科,王永生,魏应三.船艉螺旋桨激振力的数值预报[C].第十一届全国水动力学学术会议暨第二十四届全国水动力学研讨会并周培源诞辰110周年纪念大会.无锡,江苏,中国,2012.DING Ke,WANG Yong-sheng,WEI Ying-san.Calculation prediction of fluctuating force of behind-ship propeller[C].Proceeding of the 11th National conference on Hydrodynamics and 24th National conference on Hydrodynamics Commemoration of the 110th Anniversary of Zhou Pei-yuan’s Birth,Wuxi,Jiangsu,China,2012.
[11]阳涛,林永水,吴卫国,等.螺旋桨诱导的船体表面脉动压力数值预报[J].武汉理工大学学报:交通科学与工程版,2017,41(1):97-103.YANG Tao,LIN Yong-shui,WU Wei-guo,et al.Numerical prediction of pressure fluctuation included by propeller on hull surface[J].Journal of Wuhan University of Technology:Transportation Science&Engineering,2017,41(1):97-103.
[12]KAWAMURA T.Numerical simulation of propulsion and cavitation performance of marine propellers[J].Journal of the Marine Engineering Society in Japan,2011,46(3):359-365.
[13]PAIK K J,PARK H G,SEO J.RANS simulation of cavitation and hull pressure fluctuation for marine propeller operating behind-hull condition[J].International Journal of Naval Architecture&Ocean Engineering,2013,5(4):502-512.
[14]高丽敏,李瑞宇,赵磊,等.分离涡模拟类方法发展及在叶轮机械内流场的应用[J].南京航空航天大学学报,2017,49(3):301-312.GAO Li-min,LI Rui-yu,ZHAO Lei,et al.Review of development of DES and Its application in turbomachinery[J].Journal of Nanjing University of Aeronautics&Astronautics,2017,49(3):301-312.
[2]熊鹰.非均匀流中螺旋桨空泡及脉动压力的数值和试验研究[D].武汉理工大学,武汉,中国:2002.XIONG Ying.Numerical and experimental study on the cavitation and pulsating pressure of propeller in nonuniform flow[D].Wuhan University of Technology,Wuhan,China:2002.
[3]马艳,陆芳,黄红波,等.集装箱船模型螺旋桨空泡与脉动压力比对试验研究[C].第25届全国水动力学研讨会暨第12届全国水动力学学术会议,舟山,浙江,中国.2013.MA Yan,LU Fang,HUANG Hong-bo,et al.Experimental Study on the Comparison of Propeller Cavitation and Pulsating Pressure in Container Ship Model[C].Proceeding of the 25th National Conference on Hydrodynamics and 12th National Congress on Hydrodynamics,Zhoushan,Zhenjiang,China,2013.
[4]沈海龙,苏玉民.船体黏性非均匀伴流场中螺旋桨非定常水动力性能预报研究[J].水动力学研究与进展,A辑,2009,24(02):232-241.SHEN Hai-long,SU Yu-min.Study of propeller unsteady performance prediction in ship viscous nonuniform wake[J].Chinese Journal of Hydrodynamics,2009,24(02):232-241.
[5]胡小菲,黄振宇,洪方文.螺旋桨非定常力的黏性数值分析[J].水动力学研究与进展,A辑,2009,24(6):734-739.HU Xiao-fei,HUANG Zhen-yu,HONG Fang-wen.Unsteady hydrodynamics forces of propeller predicted with viscous CFD[J].Chinese Journal of Hydrodynamics,2009,24(6):734-739.
[6]Sato K,Ohshima A,Egashira H,et al.Numerical prediction of cavitation and pressure fluctuation around marine propeller[J].Plasma&Fusion Research,2009,2(2):S1071-S1071.
[7]王超.螺旋桨水动力性能、空泡及噪声性能的数值预报研究[D].哈尔滨工程大学,哈尔滨,中国:2010.WANG Chao.Numerical prediction of the hydrodynamic performance,cavitation and noise performance of Marine propeller[D].Harbin Engineering University,Harbin,China:2010.
[8]JI B,LUO X,PENG X,et al.Numerical analysis of cavitation evolution and excited pressure fluctuation around a propeller in non-uniform wake[J].International Journal of Multiphase Flow,2012,43(43):13-21.
[9]舒敏骅,陈科,尤云祥,等.动网格方法在螺旋桨非定常三向力数值计算中的应用[J].中国舰船研究,2016,11(3):25-31.SHU Min-hua,CHEN Ke,YOU Yun-xiang,et al.Application of the dynamic mesh method in the numerical simulation of unsteady bearing forces of a propeller[J].Chinese Journal of Ship Research,2016,11(3):25-31.
[10]丁科,王永生,魏应三.船艉螺旋桨激振力的数值预报[C].第十一届全国水动力学学术会议暨第二十四届全国水动力学研讨会并周培源诞辰110周年纪念大会.无锡,江苏,中国,2012.DING Ke,WANG Yong-sheng,WEI Ying-san.Calculation prediction of fluctuating force of behind-ship propeller[C].Proceeding of the 11th National conference on Hydrodynamics and 24th National conference on Hydrodynamics Commemoration of the 110th Anniversary of Zhou Pei-yuan’s Birth,Wuxi,Jiangsu,China,2012.
[11]阳涛,林永水,吴卫国,等.螺旋桨诱导的船体表面脉动压力数值预报[J].武汉理工大学学报:交通科学与工程版,2017,41(1):97-103.YANG Tao,LIN Yong-shui,WU Wei-guo,et al.Numerical prediction of pressure fluctuation included by propeller on hull surface[J].Journal of Wuhan University of Technology:Transportation Science&Engineering,2017,41(1):97-103.
[12]KAWAMURA T.Numerical simulation of propulsion and cavitation performance of marine propellers[J].Journal of the Marine Engineering Society in Japan,2011,46(3):359-365.
[13]PAIK K J,PARK H G,SEO J.RANS simulation of cavitation and hull pressure fluctuation for marine propeller operating behind-hull condition[J].International Journal of Naval Architecture&Ocean Engineering,2013,5(4):502-512.
[14]高丽敏,李瑞宇,赵磊,等.分离涡模拟类方法发展及在叶轮机械内流场的应用[J].南京航空航天大学学报,2017,49(3):301-312.GAO Li-min,LI Rui-yu,ZHAO Lei,et al.Review of development of DES and Its application in turbomachinery[J].Journal of Nanjing University of Aeronautics&Astronautics,2017,49(3):301-312.