Journal of Ship and Ocean Technology

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

Hybrid RANS and Potential Based Numerical Simulation for Self-Propulsion Performances of the Practical Container Ship

  • Kim, Jin (Maritime and Ocean Engineering Research Institute, KORDI) ;
  • Kim, Kwang-Soo (Maritime and Ocean Engineering Research Institute, KORDI) ;
  • Kim, Gun-Do (Maritime and Ocean Engineering Research Institute, KORDI) ;
  • Park, Il-Ryong (Maritime and Ocean Engineering Research Institute, KORDI) ;
  • Van, Suak-Ho (Maritime and Ocean Engineering Research Institute, KORDI)
  • Published : 2006.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

The finite volume based multi-block RANS code, WAVIS developed at MOERI is applied to the numerical self-propulsion test. WAVIS uses the cell-centered finite volume method for discretization of the governing equations. The realizable $k-{\epsilon}$ turbulence model with a wall function is employed for the turbulence closure. The free surface is captured with the two-phase level set method and body forces are used to model the effects of a propeller without resolving the detail blade flow. The propeller forces are obtained using an unsteady lifting surface method based on potential flow theory. The numerical procedure followed the self-propulsion model experiment based on the 1978 ITTC performance prediction method. The self-propulsion point is obtained iteratively through balancing the propeller thrust, the ship hull resistance and towing force that is correction for Reynolds number difference between the model and full scale. The unsteady lifting surface code is also iterated until the propeller induced velocity is converged in order to obtain the propeller force. The self-propulsion characteristics such as thrust deduction, wake fraction, propeller efficiency, and hull efficiency are compared with the experimental data of the practical container ship. The present paper shows that hybrid RANS and potential flow based numerical method is promising to predict the self-propulsion parameters of practical ships as a useful tool for the hull form and propeller design.

Keywords

References

  1. Choi, J-K. 2000. Vortical Inflow-Propeller Interaction using an Unsteady Three-Dimensional Euler solver. Ph.D Thesis, Dept. of environmental and water resources engineering, Univ. of Texas, Austin, USA
  2. Fujisawa, J., Y. Ukon, K. Kume and H. Takeshi. 2000. Local Velocity Field Measurements around the KCS Model (SRI M.S.No.631) in the SRI 400m Towing Tank. Ship Performance Division Report No. 00-003-02, The Ship Research Institute of Japan
  3. Hino, T. 2005. Proc. of CFD Workshop Tokyo 2005, Tokyo, Japan
  4. Kerwin, J.E. and C.-S, Lee. 1987. Prediction of steady and unsteady marine propeller performance by numerical lifting surface theory. Trans. SNAME 86
  5. Kim, W.J., D.H. Kim and S.-H. Van. 2002. Computational study on turbulent flows around modem tanker hull forms. International Journal for Numerical Methods in Fluids, 38,4, 377-406 https://doi.org/10.1002/fld.230
  6. Kodama, Y. (ed) 1994. Proceeding of CFD Workshop, Tokyo, Japan
  7. Larsson, L., V.C. Patel and G. Dyne (ed) 1991. Ship viscous flow, Proceeding of 1990 SSPA-CTH-IIHR Workshop, Gothenburg, Sweden
  8. Larsson, L., F. Stern and V. Bertram (ed) 2000. Gothenburg 2000: A Workshop on Numerical Ship Hydrodynamics, Gothenburg, Sweden
  9. Launder, B.E. and D.B. Spalding. 1974. The numerical computation of turbulent flows. Computer Methods in Applied Mechanics and Engineering, 3, 269-289 https://doi.org/10.1016/0045-7825(74)90029-2
  10. Park, I.-R., J. Kim and S.H. Van. 2004. Analysis of resistance performance of modem commercial ship hull form using a Level-Set method. Journal of the Society of Naval Architects of Korea, 41, 2, 79-89 (in Korean) https://doi.org/10.3744/SNAK.2004.41.2.079
  11. Shih, T.-H., W.W. Liou, A. Shabir and J Zhu. 1995. A new eddy viscosity model for high Reynolds number turbulent flows - model development and validation. Computers and Fluids, 24, 227-238 https://doi.org/10.1016/0045-7930(94)00032-T
  12. Sussman, M., E. Fatemi, P. Smerera and S. Osher. 1997. An improved Level-Set method for incompressible two-phase flows. Computers and Fluids, 27, 5-6, 663-680
  13. Van, S.H., G.T. Yim, W.J. Kim, D.H. Kim, H.S. Yoon and J.Y. Eom. 1997. Measurement of flows around a 3600TEU container ship model. Proc. of the Annual Autumn Meeting, SNAK, Seoul, Korea, 300-304 (in Korean)
  14. Van, S.H., W.J. Kim, D.H. Kim, G.T. Yim, C.J. Lee and J.Y. Eom. 1998a. Flow measurement around a 300K VLCC model. Proc. of the Annual Spring Meeting, SNAK, Ulsan, Korea, 185-188 (in Korean)
  15. Van, S.H., W.J. Kim, G.T. Yim, D.H. Kim and C. J. Lee. 1998b. Experimental investigation of the flow characteristics around practical hull forms. Proc. of the 3rd Osaka Colloquium on Advanced CFD Applications to Ship Flow and Hull Form Design, Osaka, Japan