International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
권호 표지
DOI QR코드

DOI QR Code

Numerical simulation of wave interacting with a free rolling body

  • Jung, Jae Hwan (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Yoon, Hyun Sik (Global Core Research Center for Ships and Offshore Plants, Pusan National University) ;
  • Chun, Ho Hwan (Global Core Research Center for Ships and Offshore Plants, Pusan National University) ;
  • Lee, Inwon (Global Core Research Center for Ships and Offshore Plants, Pusan National University) ;
  • Park, Hyun (Global Core Research Center for Ships and Offshore Plants, Pusan National University)
  • Published : 2013.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The present study numerically models the interaction between a regular wave and the roll motion of a rectangular floating structure. In order to simulate two-dimensional incompressible viscous two-phase flow in a numerical wave tank with the rectangular floating structure, the present study used the volume of fluid method based on the finite volume method. The sliding mesh technique is adopted to handle the motion of the rectangular floating structure induced by fluid-structure interaction. The effect of the wave period on the flow, roll motion and forces acting on the structure is examined by considering three different wave periods. The time variations of the wave height and the roll motion of the rectangular structure are in good agreement with experimental results for all wave periods. The present response amplitude operator is in good agreement with experimental results with the linear potential theory. The present numerical results effectively represent the entire process of vortex generation and evolution described by the experimental results. The longer wave period showed a different mechanism of the vortex evolution near each bottom corner of the structure compared to cases of shorter wave periods. In addition, the x-directional and z-directional forces acting on the structure are analyzed.

Keywords

References

  1. Chen, H.C., Liu, T., Chang, K.A. and Huang, E.T., 2002. Time-domain simulation of barge capsizing by a Chimera Domain Decomposition Approach. Proceedings of the 12th International Offshore and Polar Engineering Conference. Kitakyushu, Japan, 26-31 May 2002, pp.26-31.
  2. Downie, M.J., Bearman, P.W. and Graham, J.M.R., 1988. Effect of vortex shedding on the coupled roll response of bodies in waves. Journal of fluid mechanics, 189, pp.243-261. https://doi.org/10.1017/S0022112088000990
  3. Faltinsen, O.M. and Pettersen, B., 1987. Application of a vortex tracking method to separated flow around marine structures. Journal of Fluids and Structures, 1(2), pp.217-237. https://doi.org/10.1016/S0889-9746(87)90347-1
  4. FLUENT, 2010. ANSYS FLUENT user's guide. Canonsburg, USA: ANSYS Inc.
  5. Himeno, Y., 1981. Prediction of ship roll damping-state of the art, Rep no. 239: Department of Naval Architecture, University of Michigan, Michigan.
  6. Hirt, C.W. and Nichols, B.D., 1981. Volume of fluid (VOF) method for the dynamics of free boundaries. Journal of Computational Physics, 39, pp.201-225. https://doi.org/10.1016/0021-9991(81)90145-5
  7. Ikeda, Y. and Himeno, Y., 1981. Calculation of vortex-shedding flow around oscillating circular and Lewis-form cylinder. Proceedings of the 3rd International Conference on Numerical Ship Hydrodynamics. Paris, France, 16-19 June 1981.
  8. Jung, K.H., Chang, K.A. and Huang, E.T., 2004a. Two-dimensional flow characteristics of wave interactions with a fixed rectangular structure. Ocean Engineering, 31, pp.975-998. https://doi.org/10.1016/j.oceaneng.2003.12.002
  9. Jung, K.H., 2004b. Experimental study on rectangular barge in beam sea. Ph.D. Texas A&M University.
  10. Jung, K.H., Chang, K.A. and Huang, E.T., 2005. Two-dimensional flow characteristics of wave interactions with a free-rolling rectangular structure. Ocean Engineering, 32(1), pp.1-20. https://doi.org/10.1016/j.oceaneng.2004.06.007
  11. Korpus, R.A. and Falzarano, J.M., 1997. Prediction of viscous ship roll damping by unsteady Navier-Stokes techniques. Journal of Offshore Mechanics and Arctic Engineering, Transactions of the ASME, 119(2), pp.108-113. https://doi.org/10.1115/1.2829050
  12. Launder, B.E. and Spalding, D.B., 1972. Lectures in mathematical models of turbulence. London, England: Academic Press.
  13. Salvesen, N., Tuck, E.O. and Faltinsen, O.M., 1970. Ship motions and sea loads. Transactions of SNAME, 78, pp.250-287.
  14. Sarkar, T. and Vassalos, D.A., 2000. A RANS-based technique for simulation of the flow near a rolling cylinder at the free surface. Journal of Marine Science and Technology, 5, pp.66-77. https://doi.org/10.1007/s007730070012
  15. Scolan, Y.M. and Faltinsen, O.M., 1994. Numerical studies of separated flow from bodies with sharp corners by the vortex in cell method. Journal of Fluids and Structures, 8(2), pp.201-230. https://doi.org/10.1006/jfls.1994.1010
  16. Wehausen, J.V., 1971. The motion of floating bodies. The Annual Review of Fluid Mechanics, 3, pp.237-268. https://doi.org/10.1146/annurev.fl.03.010171.001321
  17. Wilson, R.V., Carrica, P.M. and Stern, F., 2006. Unsteady RANS method for ship motions with application to roll for a surface combatant. Computers and Fluids, 35(5), pp.501-524. https://doi.org/10.1016/j.compfluid.2004.12.005
  18. Yeung, R.W. and Vaidhyanathan, M., 1994. Highly separated flows near a free surface. Proceedings of the International Conference on Hydrodynamics. Wuxi, China, 30 October - 3 November 1994.

Cited by

  1. Experimental Study on the Six Degree-of-Freedom Motions of a Damaged Ship Floating in Regular Waves vol.41, pp.1, 2016, https://doi.org/10.1109/JOE.2015.2390751