Dynamic adaptive finite element analysis of acoustic wave propagation due to underwater explosion for fluid-structure interaction problems

被引：11
作者：
Emamzadeh S.S. [1 ]
Ahmadi M.T. [2 ]
Mohammadi S. [3 ]
Biglarkhani M. [4 ]
机构：
[1] Islamic Azad University, Kangan Branch, Kangan
[2] Department of Civil Engineering, Tarbiat Modares University, Tehran
[3] School of Civil Engineering, University of Tehran, Tehran
[4] Department of Civil Engineering, University of Hormozgan, Hormozgan
来源：
Journal of Marine Science and Application | 2015年 / 14卷 / 3期
关键词：
acoustic wave; adaptive mesh; finite element analysis; fluid-structure interaction; underwater explosion;
D O I：
10.1007/s11804-015-1322-x
中图分类号：
学科分类号：
摘要：
In this paper, an investigation into the propagation of far field explosion waves in water and their effects on nearby structures are carried out. For the far field structure, the motion of the fluid surrounding the structure may be assumed small, allowing linearization of the governing fluid equations. A complete analysis of the problem must involve simultaneous solution of the dynamic response of the structure and the propagation of explosion wave in the surrounding fluid. In this study, a dynamic adaptive finite element procedure is proposed. Its application to the solution of a 2D fluid-structure interaction is investigated in the time domain. The research includes: a) calculation of the far-field scatter wave due to underwater explosion including solution of the time-depended acoustic wave equation, b) fluid-structure interaction analysis using coupled Euler-Lagrangian approach, and c) adaptive finite element procedures employing error estimates, and re-meshing. The temporal mesh adaptation is achieved by local regeneration of the grid using a time-dependent error indicator based on curvature of pressure function. As a result, the overall response is better predicted by a moving mesh than an equivalent uniform mesh. In addition, the cost of computation for large problems is reduced while the accuracy is improved. © 2015, Harbin Engineering University and Springer-Verlag Berlin Heidelberg.
引用
收藏
页码：302 / 315
页数：13
相关论文
共 30 条
  • [1] Bausys R., Wiberg N.E., Adaptive finite element strategy for acoustic problems, Journal of Sound and Vibration, 226, 5, pp. 905-922, (1999)
  • [2] Bell J., Berger M., Saltzman J., Welcome M., Three dimensional adaptive mesh refinement for hyperbolic conservation laws, SIAM Journal on Scientific Computing, 15, 1, pp. 127-138, (1994)
  • [3] Berrone S., Marro M., Space-time adaptive simulations for unsteady Navier-Stokes problems, Computers & Fluids, 38, 6, pp. 1132-1144, (2009)
  • [4] Bouillard P., Allard J.F., Warzee G., Superconvergent patch recovery technique for the finite element method in acoustics, Communications in Numerical Methods in Engineering, 12, 9, pp. 581-594, (1996)
  • [5] Cole R.H., Underwater explosions, Princeton University Press, (1948)
  • [6] Dapogny C., Dobrzynshi C., Frey P., Three-dimensional adaptive domain remeshing, implicit domain meshing, and applications to free and moving boundary problems, Journal of Computational Physics, 262, 4, pp. 358-378, (2014)
  • [7] Emamzadeh S.S., An adaptive finite element analysis of acoustic waves propagation due to underwater explosion for fluid-structure interaction problems. PhD thesis, Tarbiat Modares University, Tehran, pp. 62-66, (2008)
  • [8] Ghanaat Y., Clough W., Redpath B.B., Experimental study of dam-water-foundation interaction. Proceedings of the Tenth World Conference on Earthquake Engineering, Madrid, Spain, pp. 19-24, (1992)
  • [9] Gilardo F.X., A space marching adaptive re-meshing technique applied to the 3D Euler equations for supersonic flow. PhD thesis, University of Virginia, Charlottesville, pp. 59-80, (1995)
  • [10] Harari I., Grosh K., Hughes T.J.R., Malhotra M., Pinnsky P.M., Stewart J.R., Thompson L.L., Recent development in finite element methods for structural acoustics, Archives of Computational Methods in Engineering, 3, 2-3, pp. 131-311, (1996)
123