Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Computational Analysis of KCS Model with an Equalizing Duct

  • Ng'aru, Joseph Mwangi (Department of Naval Architecture and Ocean Systems Engineering. Korea Maritime and Ocean University) ;
  • Park, Sunho (Department of Ocean Engineering, Department of Convergence Study on the Ocean Science and Technology. Korea Maritime and Ocean University) ;
  • Hyun, Beom-soo (Department of Naval Architecture and Ocean Systems Engineering. Korea Maritime and Ocean University)
  • Received : 2021.03.15
  • Accepted : 2021.07.02
  • Published : 2021.08.31
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Abstract

In order to minimize carbon emissions and greenhouse gas, the Energy Efficiency Design Index (EEDI) has become a major factor to be considered in recent years in a ship's design and operation phases. Energy-Saving Devices (ESDs) improve the EEDI of a vessel and make them environmentally friendly. In this research, the performance of an equalizing duct-type ESD installed upstream of a Korea Research Institute of Ships & Ocean Engineering (KRISO) Container Ship (KCS) model's propeller was investigated by computational fluid dynamics (CFD). Open-source CFD libraries, OpenFOAM, were used for computational analysis of the KCS with and without the ESD to verify the performance improvement. The flow field near the stern region and propulsive coefficients were considered for comparison. The results showed a considerable improvement when an ESD was used on the model. Using different sizes of the duct, the performance of the ESD was also compared. It was observed that with an increased duct size, the propulsive performance was improved.

Keywords

Acknowledgement

This research was supported by the National Research Foundation of Korea (NRF-2018R1A1A1A05020799, NRF-2021R1I1A3044639).

References

  1. Bart, S., & van Terwisga, T. (2017). Hydrodynamic Working Principle of Energy Saving Devices in Ship Propulsion Systems. International Shipbuilding Progress, 63(3-4), 255-290. https://doi.org/10.3233/ISP-170134
  2. Birk, L. (2019). Fundamentals of Ship Hydrodynamics (1ST ed.). New Jersey, USA: John Wiley & Sons, Ltd.
  3. Gaggero, S., Villa, D., & Viviani, M. (2015). The KRISO Container Ship (KCS) Test Case: An Open-Source Overview. Proceedings of VI International Conference on Computational Methods in Marine Engineering (MARINE 2015), Rome, Italy, 735-749.
  4. Go, J.S., Yoon, H.S., & Jung, J.H. (2017). Effects of a Duct Before a Propeller on Propulsion Performance. Ocean Engineering, 136, 54-66. https://doi.org/10.1016/j.oceaneng.2017.03.012
  5. Henrich, S., & Yan, X.-K. (2017). On the Working Principle of Pre-Swirl Stators and on Their Application Benefit and Design Targets. International Shipbuilding Progress, 63(3-4), 87-107. https://doi.org/10.3233/ISP-170124
  6. Hino, T. (2005), Proceedings of CFD Workshop Tokyo 2005. NMRI report 2005.
  7. Kim, K.S., Kim, Y.C., Kim, J., Lee, Y.Y., Ahn, H., S., Yim, G.T., ... Van, S.H. (2013). Practical Application of CFD for Design of Energy Saving Devices Mounted on Ship stern. Proceedings of Twenty-third International Offshore and Polar Engineering Conference, Anchorage, Alaska.
  8. Koushan, K., Krasilnikov, V., Nataletti, M., Sileo, L., & Spence, S. (2020). Experimental and Numerical Study of Pre-Swirl Stators PSS. Journal Marine Science Engineering, 8(1), 47. https://doi.org/10.3390/jmse8010047
  9. Krol, P., & Tesch, K. (2018). Pre-Swirl Energy Saving Device in Marine Application. Journal of Physics: Conference Series, 1101, 012015. https://doi.org/10.1088/1742-6596/1101/1/012015
  10. Larsson, L., Stern, F., Visonneau, M., Hirata, N., Hino, T., Kim, J. (Eds.). (2015). Tokyo 2015: A Workshop on CFD in Ship Hydrodynamics. 2, Tokyo, Japan: National Maritime Research Institute (NMRI).
  11. Menter, F.R. (1993). Zonal Two Equations k-w Turbulence Models for Aerodynamics Flows. In 23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference, American Institute of Aeronautics and Astronautics, Orlando, USA, AIAA-93-2906. https://doi.org/10.2514/6.1993-2906
  12. Mewis, F., & Guiard, T. (2011). Mewis Duct - New Developments, Solutions, and Conclusions. Proceedings of Second International Symposium on Marine Propulsors, Hamburg, Germany.
  13. Park, S., Park, S.W., Rhee, S.H, Lee, S.B., Choi, J.-E., Kang, S.H. (2013). Investigation on the Wall Function Implementation for the Prediction of Ship Resistance. International Journal of Naval Architecture and Ocean Engineering, 5, 33-46. https://doi.org/10.2478/IJNAOE-2013-0116
  14. Seb, B. (2017). Numerical Characterization of a Ship Propeller (Master Thesis). University of Zagreb, Zagreb, Croatia.
  15. Seo, S., Park, S., & Koo, B. (2017). Effect of Wave Periods on Added Resistance and Motions of a Ship in Head Sea Simulations. Ocean Engineering, 137, 309-327. http://dx.doi.org/10.1016/j.oceaneng.2017.04.009
  16. Shen, Z., Carrica P.M., & Wan, D. (2014). Ship Motions of KCS in Head Waves with Rotating Propeller Using Overset Grid Method. Proceedings of International Conference on Ocean, Offshore and Arctic Engineering, San Francisco, California, USA, OMAE2014-23657, V002T08A043. https://doi.org/10.1115/OMAE2014-23657
  17. van Leer, B. (1979). Towards the Ultimate Conservative Difference Scheme. V. A Second-order Sequel to Godunov's Method. Journal of Computational Physics, 32(1), 101-136. https://doi.org/10.1016/0021-9991(79)90145-1