Numerical simulation of water entry of different arbitrary bow sections


  • Parviz Ghadimi Amirkabir University of Technology
  • Mohammad A. Feizi Chekab Amirkabir University of Technology
  • Abbas Dashtimanesh Amirkabir University of Technology



Water entry, Arbitrary bow sections, Pressure distribution, Finite volume method, Volume of fluid


Water impact phenomenon of general bow section is a critical event for planning hulls. In this paper, the water entry of several arbitrary bow sections is investigated. For this purpose, arbitrary bow shapes which are introduced by Lewis form approximation are considered. In order to obtain pressure distribution and free surface profile, volume of fluid (VOF) method coupled with finite volume method (FVM) are utilized in Ansys-CFX solver. The main feature of present study is consideration of some new arbitrary bow sections which have not been previously studied. Another motivation of the current work is investigation of water entry of arbitrary bow sections using a coupled numerical solution of FVM/VOF. Pressure distribution, free surface, and evolution of intersection point on bow sections are presented, while secondary water impact is demonstrated. Comparison of selected current findings against the results of previous studies indicates favorable agreement.



Download data is not yet available.

Author Biographies

Parviz Ghadimi, Amirkabir University of Technology

Dr. Ghadimi is an Associate Professor of Hydromechanics and Associate Chair of Education at

Dept. of Marine Tehnology,

Amirkabir University of Technology

Tehran, Iran

Mohammad A. Feizi Chekab, Amirkabir University of Technology

Mohammad A. Feizi Chekab is a Ph.D. Candidate  at

Dept. of Marine Tehnology,

Amirkabir University of Technology

Tehran, Iran

Abbas Dashtimanesh, Amirkabir University of Technology

Mohammad A. Feizi Chekab is a Ph.D. Candidate  at

Dept. of Marine Tehnology,

Amirkabir University of Technology

Tehran, Iran


Aarsnes JV. 1996. Drop test with ship sections effect of roll angle, Report 603834.00.01. Norwegian Marine Technology Research Institute, Trondheim, Norway.

Ahmed Y.M. 2011. Numerical simulation for the free surface flow around a complex ship hull form at different Froude numbers, Alexandria Engineering Journal, Vol. 50, issue 3, pp: 229-235.

Arai M., Cheng LY., Inoue Y., Miyauchi T., Ishikawa M. 1995. A study on slamming characteristics and optimization of bow forms of ships, In: Proc. 5th Inte. Symp. on Practical Design of Ships and Mobile Units. Seoul, Korea.

Arai M, Matsunaga K. 1989. A numerical and experimental study of bow flare slamming, Journal of Society Naval Architecture Japan. Vol. 166 (in Japanese).

Arai M., Tasaki R. 1987. A numerical study of water entrance of two-dimensional wedges --- effect of gravity, spray generation and vertical load. In: Proc. 3rd Inte. Symp. Practical Design Ships Mobile Units (PRADS87). Trondheim, Norway.

Battistin D., Iafrati A. 2004. A numerical model for the jet generation by water impact, J. Eng. Math. Vol. 48, pp: 353-374.

Battistin D., Iafrati A. 2003. Hydrodynamic loads during water entry of two-dimensional and axisymmetric bodies, J. Fluid. Struct., Vol. 17, pp: 643-664.

Dobrovolskaya Z.N. 1969. On some problems of similarity flow of fluid with a free surface, J. Fluid. Mech. Vol. 36, pp: 805829.

Greenhow M. 1988. Water-entry and -exit of a horizontal circular cylinder, Appl. Ocean. Res. Vol. 10, pp: 1918.

Hargreaves D.M., Morvan H.P., Wright G. 2007. Validation of the Volume of Fluid Method for Free Surface Calculation: the Broad Crested Weir, J. Eng. Appl. Comp. Fluid. Mech., Vol. 1, No. 2, pp: 136-146.

Kleefsman K., Fekken G., Veldman A., Iwanowski B., Buchner B. 2005. A Volume-of-Fluid based simulation method for wave impact problems, J. Comput. Phys. Vol. 206, pp: 363393.

Kleefsman T., Loots E., Veldman A., Buchner B., Bunnik T., Falkenberg E. 2005. The Numerical Simulation of Green Water Loading Including the Vessel Motions and the Incoming Wave Field, OMAE Conference, Halkidiki.

Mei X., Liu Y., Yue D., 1999. On the water impact of general two-dimensional sections, Appl. Ocean Res. Vol. 21, pp: 115.

Newman J.N. 1977. Marine Hydrodynamics, The MIT press, Cambridge, MA.

Sun H., Faltinsen O.M. 2006. Water impact of horizontal circular cylinders and cylindrical shells, Appl. Ocean. Res. 28, pp: 299311.

Von Karman T. 1932. The impact on seaplane float during landing, NACA TN321, 1929.

Wagner H. 1932. Über Stoß- und Gleitvorgänge an der Oberfläche von Flüssigkeiten, ZAMM. Vol. 12. pp: 193-215.

Yamamoto Y., Iida K., Fukasawa T., Murakami T., Arai M., Ando A. 1985. Structural damage analysis of a fast ship due to bow flare slamming, Int. Shipbuilding Prog. Vol. 32(369), pp: 124-136.

Ying X., Jorgeson J., Wang S.Y. 2009. Modeling Dam Break Flows Using Finite Volume Method on Unstructured Grid, J. Eng. Appl. Comp. Fluid. Mech., Vol. 3, No. 2, pp: 184-194.

Wang W., Wang Y. 2010. An Essential Solution of Water Entry Problems and its Engineering Applications, J. Marine Sci. Appl. Vol. 9, pp: 268-273.

Zhao R., Faltinsen O.M. 1993. Water entry of two-dimensional bodies, J. Fluid. Mech. Vol. 246, pp: 593612.

Zhao R., Faltinsen O.M., Aarsnes J. 1996. Water entry of arbitrary two-dimensional sections with and without separation, Proc. 21st Symposium on Naval Hydrodynamics, pp: 118133. Trondheim, Norway.

Zhu X.Y. 2006. Application of the CIP method to strongly nonlinear wave-body interaction problems, Ph.D Thesis, Norwegian University of Science and Technology, Trondheim, Norway.




How to Cite

Ghadimi, P., Feizi Chekab, M. A., & Dashtimanesh, A. (2014). Numerical simulation of water entry of different arbitrary bow sections. Journal of Naval Architecture and Marine Engineering, 11(2), 117–129.