Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

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

DOI QR Code

A Study on the Estimation of the Effective Wake Ratio for ONR Tumblehome by the Numerical Analysis

수치해석을 활용한 ONR Tumblehome의 유효반류비 추정에 관한 연구

  • Lee, Jun-Hee (Korea Research Institute of Ships & Ocean Engineering (KRISO)) ;
  • Suh, Sung-Bu (Department of Naval Architecture and Ocean Engineering, Dong-eui University)
  • 이준희 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 서성부 (동의대학교 조선해양공학과)
  • Received : 2018.06.11
  • Accepted : 2018.10.26
  • Published : 2019.04.20
Download PDF
⟨ Previous Next ⟩

Abstract

This paper carried out numerical analysis for estimating the propulsion performance of the model scale ONRT benchmark model of'Tokyo 2015 a workshop on CFD'. The method reflecting the scale effect of ITTC'78 method and form factor were used to compare the estimates of the effective wake ratio of full-scale. The numerical calculation was performed with Siemens's Star-CCM+, compared with IIHR model tests and the numerical analysis results of other research institutes, showing good agreement. In the case of an open stern and twin skeg ship, the validity of the ITTC'78 method can be confirmed by assuming that the effective wake ratio estimated from the numerical analysis results of model scale is similar to the effective wake ratio of full-scale.

Keywords

References

  1. A workshop on CFD in ship hydrodynamics, 2015. ONR Tumblehome, [Online] Available at: http://www.t2015.nmri.go.jp/onrt.html [Accessed 1 February 2017].
  2. Choi, J.E., Kim, J.H. & Lee, H.G., 2011. Computational study of the scale effect on resistance and propulsion performance of VLCC. Journal of the Society of Naval Architects of Korea, 48(3), pp.222-232. https://doi.org/10.3744/SNAK.2011.48.3.222
  3. Garcia-Gomez, A., 2000. On the form factor scale effect. Ocean Engineering, 27(1), pp.97-109. https://doi.org/10.1016/S0029-8018(98)00042-0
  4. Ha, Y.J., Lee, Y.-G. & Kang, B.H., 2013. A study on the estimation of the form factor of full scale ship by the experimental data of geosim models. Journal of the Society of Naval Architects of Korea, 50(5), pp.291-297. https://doi.org/10.3744/SNAK.2013.50.5.291
  5. ITTC. 1978. Recommended procedures and guidelines - performance prediction method 7.5-02-03-01.4. International towing tank conference.
  6. Lee, C.S. et al., 2007. Ship propulsion and propeller design. 2nd Ed. Munundang: Seoul.
  7. Min, K.S. & Kang, S.H., 2010. Study on the form factor and full-scale ship resistance prediction method. Journal of the Society of Naval Architects of Korea, 15(2), pp.108-118.
  8. Park, I.R., Kim, W.J., Kim, H. & Van, S.H., 2005. A study on a VOF method for the improvement of free surface capturing. Journal of the Society of Naval Architects of Korea, 42(2), pp.88-97. https://doi.org/10.3744/SNAK.2005.42.2.088
  9. Sanada, Y. et al., 2013. Trajectories for ONR Tumblehome maneuvering in calm water and waves. Ocean Engineering, 72, pp.45-65. https://doi.org/10.1016/j.oceaneng.2013.06.001
  10. Siemens, 2017. STAR-CCM+ v.10.06 user's maunal.
  11. Wang, J.H., Zhao, W.W. & Wan, D.C., 2016. Self-propulsion simulation of ONR tumblehome using dynamic overset grid method. Shanghai Jiao Tong Univ. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, USA.
  12. Yang, H.U., Kim, B.N., Yoo, J.H. & Kim, W.J., 2010. Wake comparison between model and full scale ships using CFD. Journal of the Society of Naval Architects of Korea, 47(2), pp.150-162. https://doi.org/10.3744/SNAK.2010.47.2.150