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《Journal of Shanghai Jiaotong University》 2014-01
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Real-Time Numerical Prediction Method of “Dolphin Motion”High-Speed Planning Craft

LING Hong-jie;WANG Zhi-dong;Department of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology;  
Based on the computational fluid dynamics software FLUENT and the longitudinal motion equation of planning craft crafts,aprediction procedure for coupling and solving of planning craft longitudinal motion response was compiled and the numerical simulation of the dolphin motion of three dimension planning craft model in the uniform flow movement was conducted.According to the different speed and different position of the center of gravity,under the condition of the motion characteristics of the heave and pitch of the planning craft,this paper timely numerically forecasts the boat body amplitude of heave and the angle of trim changing characteristic curve of pitch with time.The results show that,when the longitudinal position of the center of gravity lg =0.231L(Lis the length of planning craft),and the volume Froude number Fr▽ ≥2.7,the dolphin motion of the planning craft appears,and with the increase of the speed, the amplitude of the heave,the angle of trim and the frequency of the response increase;when Fr▽ =5.0, lg =0.381L,0.351L,the dolphin motion of the planning craft appears,and with the retrusive position of the center of gravity,the amplitude of the heave,the angle of pitching and the frequency of the response increase.
【Fund】: 国家自然科学基金项目(51279070);; 江苏省高等学校自然科学研究重大项目(12KJA_580001);; 江苏省研究生创新计划项目;; 江苏省优势学科项目资助
【CateGory Index】: U661.1
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【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 Hongjie Ling;Zhidong Wang;Na Wu;Department of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology;;On Prediction of Longitudinal Attitude of Planing Craft Based on Controllable Hydrofoils[J];船舶与海洋工程学报(英文版);2013-03
China Proceedings of conference Full-text Database 2 Hits
1 MENG Qing-jie~1,SUI Zhi-xiang~2,WAN De-cheng~1* 1.State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering, Shanghai Jiao Tong University,Shanghai 200240, 2.China Ship Development and Design Center,Shanghai 201108;A Numerical simulation of viscous flow around moving ships with dynamic overset grids[A];[C];2013
2 LIU Yuan-chuan,WAN De-cheng~* State Key Laboratory of Ocean Engineering,School of Naval Architecture,Ocean and Civil Engineering, Shanghai Jiao Tong University,Shanghai 200240;Calculation of motion response for a moored floating pier in waves[A];[C];2013
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