Numerical Simulation of the Added Mass and Drag of a Uniform and Accelerated Motion Projectile

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The added mass, drag and drag coefficient of a uniform and accelerated motion projectile in viscous incompressible fluid were calculated by numerical simulation and dynamic mesh method. The effect of velocity and acceleration on the added mass, drag and drag coefficient of the projectile in a launch tube was investigated. The results show that the variation rules of added mass, drag and drag coefficient are basically the same when the projectile moves at different speeds. The added mass, drag and drag coefficient become smaller and drag becomes bigger with the increase of speed. The variation rules of the added mass, drag and drag coefficient are the same as uniform motion when the projectile moves at different accelerations. The added mass and drag coefficient become smaller and drag becomes bigger with the increase of acceleration. These reveal that the motion region, velocity and acceleration have some effect on the added mass, drag and drag coefficient.

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161-164

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October 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] X.F. Wang, A.K. Xiong, Advanced Fluid Mechanics, first ed., Wuhan : Huazhong University of Science and Technology Press (2003), p.200.

Google Scholar

[2] B.Y. Li, Y.X. Jiang, Calculation of added mass for ship entering and leaving a ship-box, Chinese Journal of Computational Mechanics, Vol. 20 (2003), pp.350-354.

Google Scholar

[3] C.Y. Lin, J. Zhu, Numerical computation of added mass of submarine maneuvering with small clearance to ser-bottom, Ship Engineering, Vol. 25 (2003), pp.26-29.

Google Scholar

[4] B. Y. Ni, S.L. Sun, L.Q. Sun, C. Zhang, Influence of additive mass variation of a missile during its entering into water, Journal of Vibration and Shock, Vol. 31 (2012), pp.75-78, 113.

Google Scholar

[5] Y. Ma, X.X. Shan, A new numerical computational method for added masses of complicated object, Computer Simulation, Vol. 24 (2007), pp.171-176.

Google Scholar

[6] R. Naveed, M. Imran, R. Hafiz, R. Mohammad, Numerical simulation of added Mass determination of standard ellipsoids, Proceedings of 1012 9th International Bhurban Conference on Applied Sciences & Technology, Islamabad, Pakistan, 9th-12th January (2012).

DOI: 10.1109/ibcast.2012.6177564

Google Scholar

[7] G. Li, W.Y. Duan, Z.B. Guo, Added mass of submerged vehicles with complex shape, Journal of Harbin Institute of Technology, Vol. 42 (2010), pp.1145-1148.

Google Scholar

[8] H.P. Fu, J. Li, Numerical studies of added mass based on the CFD method, Journal of Harbin Engineering University, Vol. 32 (2011), pp.148-152.

Google Scholar

[9] S.W. Gong, H.Z. Lu, Z.P. Zou, F.L. Lu, Hydrodynamic numerical computation of the added mass of elastic body and cavitation bubble, Compute Simulation, Vol 27 (2010), pp.349-354.

Google Scholar

[10] R.C. Zhu, H.Q. Guo, G.P. Miao, J.W. Yu, A computational method for evaluation of added mass and damping of ship based on CFD theory, Journal of Shanghai Jiaotong University, Vol. 43 (2009), pp.198-203.

Google Scholar