Numerical simulation of 2D hydrodynamic impact of wedge and ship section at variable velocity
DOI:
https://doi.org/10.3329/jname.v10i1.14383Keywords:
Numerical simulation, Hydrodynamic impact, Variable velocityAbstract
A commercial CFD code Fluent 6.3® is used to simulate non-linear free surface flow and compute the impact load during variable velocity water entry of 2D wedge and ship section. The code uses the finite volume method to solve the conservation of mass and momentum equations to obtain simulated flow field. The interface between water and air was modeled using volume of fluid (VOF) method. Wedge section with 30 degree dead-rise angle and a ship section are numerically simulated. Time history of impact force and pressures at distinct locations are predicted; and compared with existing experimental results and other numerical methods. Present numerical results compare well with experimental measurements.
Downloads
252
229
References
Arai, M. and Matsunaga, K. (1989): A numerical and experimental study of bow flare slamming, Journal of Society of Naval Architects, Japan, 166.
Arai, M., Cheng, L.Y., Inoue, Y., Miyauchi, T. and Ishikawa, M. (1995): A study on slamming characteristics and optimization of bow forms of ships, Proceedings of 3rd International Symposium on Practical Design of Ships and Mobile Units, Seoul, Korea, September 17- 22.
Arai, M., Tasaki, R. (1987): A numerical study of water entrance of two-dimensional wedges effects of gravity, spray generation and vertical load, Proceedings of 3rd International Symposium on Practical Design of Ships and Mobile Units, Trondheim, Norway, June.
Cointe, R. and Armand, J.L. (1987): Hydrodynamic impact analysis of a cylinder, Journal of offshore Mechanics and Arctic Engineering, American Society of Mechanical Engineers (ASME), vol. 109, pp. 237-243.
Faltinsen, O.M. (2000): Hydro-elastic slamming, Journal of Marine Science and Technology (JMST), vol.5, pp. 49-65.
Faltinsen, O.M., Landrini, M. and Greco, M. (2004): Slamming in marine applications, Journal of Engineering Mathematics 48, pp. 187-217.
Kapsenberg, G.K. (2011): Slamming of ships: where are we now? Philosophical Transactions of the Royal Society A 369, pp.2892-2919.
Howison, S.D., Ockendon, J.R. and Wilson, S.K. (1991): Incompressible water entry problems at small deadrise angles, Journal of Fluid Mechanics, vol. 222, pp.215-230.
Muzaferija, S., Peric, M., Sames, P.C. and Schellin, T.E. (2000): A two-fluid Navier-Stokes solver to simulate water entry, Proceedings of 22nd Symposium on Naval Hydrodynamics, pp. 638-651.
Reddy, D.N., Scanlon, T., Chengi, K. (2002): Prediction of slam loads on wedge section using computational fluid dynamics technique, Proceedings of 24th Symposium on Naval Hydrodynamics, pp. 37-49.
SNAME (1993): Notes on ship slamming, Society of Naval Architects and Marine Engineers (SNAME), Technical and Research Bulletin, pp. 2-30.
Tao, Z. and Incecik, A. (1996): Large amplitude ship motions and bow flare slamming pressures, Proceedings of the 15th International Conference on Offshore Mechanics and Arctic Engineering, OMAE, Florence, Italy.
Von Karman, T.,The impact on sea plane floats during landing, Technical Report, NACA TN 321.
Wagner, H. (1932): Uber Stoss-und Gleitvorgange and der Oberflache von Flussigkeiten, Zeitschr. f. Angewandte Mathematik und Mechanik(ZAMM) vol. 12, no. 4, pp. 192-235.
Zhao, R., Faltinsen O.M. and Aarnes, J. (1996): Water entry of arbitrary two-dimensional sections with and without flow separation, Proceedings of 21st Symposium on Naval Hydrodynamics, pp. 408-423, Trondheim, Norway.
Downloads
Published
How to Cite
Issue
Section
License
Please download the Copyright Transfer Agreement and send it after duly filled in.
Link to FaceBook
