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Time-domain hybrid method for simulating large amplitude motions of ships advancing in waves

  • Published : 2011.03.31

Abstract

Typical results obtained by a newly developed, nonlinear time domain hybrid method for simulating large amplitude motions of ships advancing with constant forward speed in waves are presented. The method is hybrid in the way of combining a time-domain transient Green function method and a Rankine source method. The present approach employs a simple double integration algorithm with respect to time to simulate the free-surface boundary condition. During the simulation, the diffraction and radiation forces are computed by pressure integration over the mean wetted surface, whereas the incident wave and hydrostatic restoring forces/moments are calculated on the instantaneously wetted surface of the hull. Typical numerical results of application of the method to the seakeeping performance of a standard containership, namely the ITTC S175, are herein presented. Comparisons have been made between the results from the present method, the frequency domain 3D panel method (NEWDRIFT) of NTUA-SDL and available experimental data and good agreement has been observed for all studied cases between the results of the present method and comparable other data.

Keywords

References

  1. Chen, C.Y. and Noblesse, F., 1983. Comparison between theoretical predictions of wave resistance and experimental data for the Wigley hull. Journal of Ship Research.Vol.27, pp.215-226.
  2. Cummins, W.E., 1962. The impulsive response function and ship motions, Schiffstechnik, Vol.9, pp.124-135.
  3. Duan, W. and Dai, Y., 1999. Time-domain calculation of hydrodynamic forces on ships with large flare. International Shipbuilding Progress, Vol.46, pp.223-232.
  4. Faltinsen, O. M. Minsaas, K. J. Liapis, N. and Skjordal, S. O., 1980. Prediction of resistance and propulsion of a ship in a seaway. Proc. 13th Symposium on Naval Hydrodynamics, Tokyo, Japan, pp. 505-529.
  5. Finkelstein, A., 1957. The initial value problem for transient water waves. Communications on Pure and Appled. Mathematics, Vol.10, pp.511-522. https://doi.org/10.1002/cpa.3160100403
  6. ITTC Seakeeping Committee, 1978. Comparison of results obtained with compute programs to predict ship motions in six-degrees-of-freedom and associated responses. Proc. 15th ITTC, pp.79-92.
  7. Kataoka, S. and Iwashita, H., 2004. Estimations of hydrodynamic forces acting on ships advancing in the calm water and waves by a time-domain hybrid method. Journal of the Society of Naval Architects of Japan, Vol.196, pp.123-138.
  8. Kataoka, S. and Iwashita, H., 2005. Seakeeping estimations of ships by a time-domain hybrid method, International. RIAM Symposium, Kyushu , Japan.
  9. Kuroda, M. Tsujimoto, M. and Fujiwara, T., 2008. Investigation on components of added resistance in short waves, Journal of the Japan Society of Naval Architects and Ocean Engineers, Vol. 8, pp. 171-176. https://doi.org/10.2534/jjasnaoe.8.171
  10. Liu, S. Papanikolaou, A. and Duan, W., 2006. A time domain numerical simulation method for nonlinear ship motions. Journal of Harbin Engineering University, Vol.27, pp. 177-185.
  11. Liu, S. and Papanikolaou, A., 2009. A time-domain hybrid method for calculating hydrodynamic forces on ships in waves. 13th Inter. Congress of the Inter. Maritime Association of the Mediterranean, Istanbul, Turkey.
  12. Maruo, H., 1963. Resistance in waves, 60th anniversary Series. The Society of Naval Architects of Japan, 8, pp.67-102.
  13. Nigel, P. Weatherill. Bharat, K. Soni. and Joe, F. Thompson., 1999. Handbook of Grid Generation, CRC Press.
  14. Papanikolaou, A., 1985. On integral-equation-methods for the evaluation of motions and loads of arbitrary bodies in waves. Journal Ingenieur - Archiv., Vol.55, pp.17-29. https://doi.org/10.1007/BF00539547
  15. Papanikolaou, A. and Schellin, Th., 1992. A threedimensional panel method for motions and loads of ships with forward speed in waves. Journal Schiffstechnik, Vol. 39, pp.145-156.
  16. SHIPFLOW, 2005., SHIPFLOW 3.0 examples manual, http://www.flowtech.se/
  17. Spanos, D., 2002. Simulation of the motions of a ship after flooding in waves and investigation of the survivability of ROPAX ships. Doctoral Thesis, National Technical University of Athens, Greece.
  18. Takahashi, T., 1988. A practical prediction method for added resistance of a ship in waves and the direction of its application to hull form design. Trans. Of the West Japan Society of Naval Architects, Vol.75, pp.75-95.
  19. Tsujimoto, M. Shibata, K. and Kuroda, M., 2008. A practical correction method for added resistance in waves, Journal of the Japan Society of Naval Architects and Ocean Engineers, Vol. 8, pp. 177-184. https://doi.org/10.2534/jjasnaoe.8.177
  20. Wang, J., 2003. Numerical simulation of the linear freesurface condition. Master Thesis, Harbin Engineering University, China.
  21. Yasukawa, H., 2003. Application of a 3-D Time Domain Panel Method to Ship Seakeeping Problems. 24th Symposium on Naval Hydrodynamics, pp.376-392.
  22. Zhang, S. Lin, W.M. and Weems, K., 1998. A hybrid boundary element method for non-wall-sided bodies with or without forward speed. 13th IWWWFB, pp. 179-182.

Cited by

  1. On Nonlinear Simulation Methods and Tools for Evaluating the Performance of Ships and Offshore Structures in Waves vol.2012, pp.1687-0042, 2012, https://doi.org/10.1155/2012/563182