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

  • 제47권2호
  • /
  • Pages.150-162
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  • 2010
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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CFD를 이용한 모형선과 실선 스케일의 반류 비교

Wake Comparison between Model and Full Scale Ships Using CFD

  • 양해욱 (목포대학교 기계조선해양공학부 해양시스템공학) ;
  • 김병남 (중소조선연구원) ;
  • 유재훈 (목포대학교 기계조선해양공학부 해양시스템공학) ;
  • 김우전 (목포대학교 기계조선해양공학부 해양시스템공학)
  • Yang, Hae-Uk (Department of Ocean Engineering, Mokpo National University) ;
  • Kim, Byoung-Nam (Research Institute of Medium & Small Shipbuilding) ;
  • Yoo, Jae-Hoon (Department of Ocean Engineering, Mokpo National University) ;
  • Kim, Wu-Joan (Department of Ocean Engineering, Mokpo National University)
  • 발행 : 2010.04.20
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초록

Assessment of hydrodynamic performance of a ship hull has been focused on a model ship rather than a full-scale ship. In order to design the propeller of a ship, model-scale wake is often extended to full-scale based upon an empirical method or designer's experience, since wake measurement data for a full-scale ship is very rare. Recently modern CFD tools made some success in reproducing wake field of a model ship, which implicates that there are some possibilities of the accurate prediction of full-scale wakes. In this paper firstly the evaluation of model-scale wake obtained by Fluent package was performed. It was found that CFD calculation with the Reynolds-stress model (RSM) provided much better agreement with wake measurement in the towing tank than with the realizable k-$\varepsilon$ model (RKE). In the next full-scale wake was calculated using the same package to find out the difference between model and full-scale wakes. Three hull forms of KLNG, KCS, KVLCC2 having measurement data open for the public, were chosen for the comparison of resistance, form factor, and propeller plane wake between model ships and full-scale ships.

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참고문헌

  1. Choi, J.K., 2009, Problem Analysis Using Wall Function for Numerical Analysis of High Reynolds Number Turbulent Flow, Master's Thesis, Chungnam National University.
  2. Kim, B.N., Kim, W.J., Kim, K.S. and Park, I.R.. 2009, “The Comparison of Flow Simulation Results around a KLNG Model Ship," Journal of The Society of Naval Architects of Korea, Vol. 46, No. 3, pp.219-231. https://doi.org/10.3744/SNAK.2009.46.3.219
  3. Kim, H.T. and Kim, H.T.. 2006, “Research of Elements Giving Effects on the Numerical Analysis for the LNG Carrier," Journal of The Society of Naval Architects of Korea, Vol. 43, No. 6, pp. 656-666. https://doi.org/10.3744/SNAK.2006.43.6.656
  4. Kim, W.J., Van, S.H., Kim, D.H. and Lee, C.J., 2000, “Experimental Study on Local Flow Characteristics and Propulsive Performance of Two KRISO 300K VLCCs with Different Stern Shapes,” Journal of The Society of Naval Architects of Korea, Vol. 37, No. 3, pp. 11-20.
  5. Patel, V.C., 1998, “Flow at High Reynolds Number and over Rough Surfaces-Achilles Heel of CFD,” Journal of Fluids Engineering, Vol. 120, No. 3, pp. 1-26. https://doi.org/10.1115/1.2819648
  6. Van, S.H, Kim, W.J. and Kim, D.H., 2000, “Experimental Investigation of Local Flow around KRISO 3600TEU Container Ship Model in Towing Tank,” Journal of The Society of Naval Architects of Korea, Vol. 37, No. 3, pp.1-10.
  7. Van, S.H., Yoon, H.S., Lee, Y.Y., Park, I.R., Lee, C.J. and Kim, W.J., 2003, “Measurement of Flow around KRISO 138K LNG Carrier Model," Journal of The Society of Naval Architects of Korea, Vol. 40, No. 2, pp.1-10. https://doi.org/10.3744/SNAK.2003.40.2.001

피인용 문헌

  1. The Design Optimization of a Flow Control Fin Using CFD vol.49, pp.2, 2012, https://doi.org/10.3744/SNAK.2012.49.2.174
  2. Effect of Grid, Turbulence Modeling and Discretization on the Solution of CFD vol.20, pp.4, 2014, https://doi.org/10.7837/kosomes.2014.20.4.419
  3. Numerical Prediction of Ship Hydrodynamic Performances using Explicit Algebraic Reynolds Stress Turbulence Model vol.51, pp.1, 2014, https://doi.org/10.3744/SNAK.2014.51.1.67
  4. Numerical Simulation of Turbulent Flow around KLNG Hull Form with Different Scale Ratio vol.51, pp.1, 2014, https://doi.org/10.3744/SNAK.2014.51.1.8
  5. A Fundamental Study on the Power Prediction Method of Ship by using the Experiment of Small Model vol.51, pp.3, 2014, https://doi.org/10.3744/SNAK.2014.51.3.231
  6. Numerical Analysis of the Wake of a Surface Ship Model Mounted in KRISO Large Cavitation Tunnel vol.53, pp.6, 2016, https://doi.org/10.3744/SNAK.2016.53.6.494
  7. A Study on the Improvement of Hull-Form Design for Propulsion Type Change of Net Boat Mounted on Tuna Purse Seiner vol.24, pp.6, 2018, https://doi.org/10.7837/kosomes.2018.24.6.810