Numerical Study on Sailing Resistance Characteristics of Amphibious Vehicle

被引：1
|
作者：
Zhou L. [1 ]
Zhang L. [1 ]
机构：
[1] School of Naval Architecture, Ocean and Energy Power Engineering, Key Laboratory of High Performance Ship Technology of Ministry of Education, Wuhan University of Technology, Wuhan
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2021年 / 49卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Amphibious vehicle; CFD; Finite volume method; Multiple molding; Overlapping grid; Sailing resistance;
D O I：
10.12141/j.issn.1000-565X.200719
中图分类号：
学科分类号：
摘要：
Numerical simulation of the resistance and sailing state of high speed amphibious vehicle in still water was conducted with the finite volume method based on Reynolds averaged equation to obtain the resistance characteristics of high speed amphibious vehicle in water. The mesh convergence of mesh was discussed by comparing the resistances of different mesh densities, and the numerical calculation method was validated by comparing the simulation results with model test results. In addition, the different resistance components of the amphibious vehicle were analyzed based on the calculation results of the multiple molding. Then, the changes of resistance and sailing states of the amphibious vehicle model with openings were calculated and analyzed. The results show that, for the amphibious vehicle in transition stage, the proportion of wave-making resistance to the total resistance increases with the increase of velocity (the maximum rate can reach over 60%), the proportion of viscous pressure resistance to total resistance is 30%~40%, and the proportion of friction resistance to total resistance is less than 10%. The resistance increases when the amphibious vehicle added with openings, and the resistance increases by about 11% and the draft increases by about 5% when Fr▽ is 1.297. Compared with the amphibious vehicle model with non-openings, the amphibious vehicle model with openings shows changes in proportions of different resistance components to the total resistance: the proportion of wave-making resistance decreases and the proportion of viscosity-pressure resistance increases. © 2021, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：133 / 142
页数：9
相关论文
共 15 条
  • [1] WU Ke, WANG Wei, ZHAO Feng, Military amphibians current actuality and developing trend, Special Purpose Vehicle, 2, pp. 15-16, (2004)
  • [2] XU Guoying, WANG Jun, ZHOU Jingtao, Numerical simulation of the amphibious vehicle's drag force and attitude based on CFD, Ship Science and Technology, 28, 4, pp. 22-25, (2006)
  • [3] MORE R R, ADHAV P, SENTHILKUMAR K, Et al., Stability and drag analysis of wheeled amphibious vehicle using CFD and model testing techniques, Applied Mechanics and Materials, 592, pp. 1210-1219, (2014)
  • [4] WAN Xiaowei, WANG Tao, YAO Xinmin, Study on numerical simulation method for high speed navigation state of amphibious vehicle, Computer Simulation, 29, 6, pp. 323-327, (2012)
  • [5] ZHAO Bin, ZHANG Mindi, JU Dongmei, Numerical simulation of navigating pose for amphibious vehicle based on dynamic-mesh model, Acta Armamentarii, 36, 3, pp. 412-420, (2015)
  • [6] CAI Yufeng, WANG Lili, WANG Yu, Et al., Hydrodynamical simulation of amphibious vehicle based on CFD and its experimental verification, System Simulation Technology, 14, 3, pp. 183-187, (2018)
  • [7] ZHOU Jingtao, CAO Fengli, HAN Lanyi, Et al., Numerical simulation of influence of breakwater board on amphibious vehicle trim attitude, Journal of Gun Launch & Control, 35, 3, pp. 45-49, (2014)
  • [8] GUO Wenfeng, PAN Yutian, Numerical simulation on sailing resistance of wheeled amphibious vehicles based on Fluent, Journal of North University of China, 34, 3, pp. 240-243, (2013)
  • [9] SONG Guixia, SHEN Lei, Amphibious vehicle resistance comparison in wheels' deploying and retracting based on parallel numerical computation, Mechanical Science and Technology for Aerospace Engineering, 29, 8, pp. 1051-1055, (2010)
  • [10] SUN Xuguang, LI Yong, WEI Tao, Et al., Analysis of resistance ingredient for amphibious vehicles based on calculation method of improved multiple model, Vehicle & Power Technology, 1, pp. 54-57, (2019)
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