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《Acta Armamentarii》 2012-10
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Simulation Study on Drag Reduction Characteristics of Bionic Jet Flow Based on Shark Gill

GU Yun-qing 1,ZHAO Gang 1,ZHAO Hua-lin 1,ZHENG Jin-xing 1,WANG Fei 1,XIAO Lei 2,LIU Wen-bo 1(1.College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin 150001,Heilongjiang,China;2.Mining Area Service Enterprise Department,Daqing Oil Field Company Ltd,Daqing 163000,Heilongjiang,China)  
A bionic jet model based on the feature of shark gill was established for the characteristics of flow field on the bionic jet surface.The drag reduction characteristics and drag reduction mechanisms of bionic jet flow based on shark gill were studied using numerical simulation method at the main flow field velocity of 3 m/s and the jet velocity of 0.02~1 m/s.The results show that: the bionic jet flow based on shark gill has a drag reduction effect when the jet velocity u is more than 0.1 m/s,and the drag reduction rate increases with jet velocity.The bionic jet flow based on shark gill affects the drag reduction characteristics of model by changing the frictional resistance and pressure drag.The mechanism of bionic jet flow influencing on frictional resistance is that the thickness of viscous sublayer at the downstream of jet outlet increases and the velocity gradient reduces.And a reverse eddy forms,which makes the flow field have a stable large vortex structure and reduce the influence of turbulent fluctuation on the wall.The mechanism of bionic jet flow influencing on pressure drag is that the jet velocity,as an additional power,inhibits the differential pressure resistance,resulting in its decline.
【Fund】: 国家自然科学基金项目(51275102);; 中央高校基本科研业务费专项资金项目(HEUCF110702);; 哈尔滨市科技创新人才研究专项(159070220011)
【CateGory Index】: TB17
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 ZHANG Cheng-chun1,2,REN Lu-quan3,WANG Jing4,ZHANG Yongzhi5 (1.State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China;2.Zhengzhou Yutong Bus Co.,Ltd,Zhengzhou 450016,Henan,China;3.Key Laboratory for Terrain-Machine Bionics Engineering,Ministry of Education,Jilin University,Changchun 130022,Jilin,China;4.College of Agriculture,Jilin University,Changchun 130062,Jilin,China;5.College of Mechanical Science and Engineering,Jilin University,Changchun 130022,Jilin,China);Simulation on Flow Control for Drag Reduction of Revolution Body Using Bionic Dimpled Surface[J];Acta Armamentarii;2009-08
【Co-citations】
Chinese Journal Full-text Database 6 Hits
1 GU Zheng-qi1,GUO Jian-cheng1,2,ZHANG Qing-lin1,JIN Yi-feng1(1.State Key Laboratory of Advanced Design and Manufacture for Vehicle Body,Hunan University,Changsha, Hunan 410082,China;2.FAW-Volkswagen Automotive Company Ltd.,Changchun,Jilin 130011,China);Simulation Study into the Influence of Appearance Variation of a Sport Car's Rear Wing on the Aerodynamic Lift[J];Transactions of Beijing Institute of Technology;2012-03
2 FENG Bei-bei,ZHANG Yan,DOU Zhao-liang,WANG Jia-dao,CHEN Da-rong(State Key Laboratory of Tribology,Tsinghua University,Beijing 100084,China);Fabrication and drag reduction property of polymer coating with micron-scale structured surface[J];Journal of Functional Materials;2012-08
3 Tian Limei1, Bu Zhaoguo1, Chen Qinghai1, Li Wenyuan1, Li Xinhong2 (1.Key Laboratory of Bionic Engineering of China Ministry of Education, Jilin University, Changchun 130022, China; 2. Jilin City Fang Tian Pump Co.,Ltd, Jilin 132001, China);Casting method of rib-like bionic non-smooth surface[J];Transactions of the Chinese Society of Agricultural Engineering;2011-08
4 ZHAO Gang,GU Yunqing,ZHAO Hualin,XIA Donglai,YAO Jianjun(College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin 15000,China);Numerical simulation of the drag reduction characteristics of a bionic jet surface aperture coupled with jet speed[J];Journal of Harbin Engineering University;2012-08
5 GU Yun-qing1,2,ZHAO Gang1,LIU Hao1,WANG Yan-ming3,LI Zhao-yuan1, LIU Wen-bo1,ZHAO Jian-ying1,LI Fang1(1.College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin 150001,China;2.College of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650500,China;3.Qiqihar Heavy CNC Equipment Co.,Ltd.,Qiqihar 161005,China);Characteristics of drag reduction of bionic dimpled surface of shell rubber ring of aerodynamic extinguishing cannon[J];Journal of Jilin University(Engineering and Technology Edition);2013-04
6 GU Yunqing,ZHAO Gang,ZHENG Jinxing,ZHANG Shu, RU Jing,LIU Mingming,YAO Jianjun(College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin 150001,China);Drag Reduction Characteristics on Jetting Surface with Jet Angle-Jet Velocity Coupling[J];Journal of Xi'an Jiaotong University;2012-09
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