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[국내논문] A Numerical Study of Turbulent Flow Around a Twin-Skeg Container Ship Model with Appendages 원문보기

Journal of ship and ocean technology, v.10 no.4, 2006년, pp.12 - 23  

Kim, Hyoung-Tae (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ,  Lee, Pyung-Kuk (Hanjin Heavy Industries and Construction Co., Ltd.) ,  Kim, Hee-Taek (Department of Naval Architecture & Ocean Engineering, Chungnam National University)

Abstract ▼ AI-Helper 아이콘AI-Helper

In this paper, a numerical study is carried out to investigate the turbulent flow around a twin-skeg container ship model with rudders including propeller effects. A commercial CFD code, FLUENT is used with body forces distributed on the propeller disk to simulate the ship stem and wake flows with t...

주제어

#twin-skeg container ship   #rudders   #propeller effects   #body-force propeller   #RANS equations   #Reynolds stress model  

AI 본문요약
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제안 방법

  • In this paper, a numerical analysis is performed to look into the turbulent shear flow around a 12,000 TEU, twin-skeg container ship using a commercial CFD code, FLUENT. The computations have been conducted for the double-body model of both the bare hull and the hull with appendages.
  • In this paper, a numerical study of the turbulent flows around a twin-skeg large container ship has been carried out for both the bare hull and the hull with appendages. For the barehull, the computed velocities at the propeller and the transom planes have been compared with experimental data.
  • 3333px;">alysis is performed to look into the turbulent shear flow around a 12,000 TEU, twin-skeg container ship using a commercial CFD code, FLUENT. The computations have been conducted for the double-body model of both the bare hull and the hull with appendages. The computed result is compared with the model test data of the MOERI (Kim, Y.

대상 데이터

  • The computations are carried out for a twin-skeg container ship, which has been designed in MOERI with the following dimensions: the length between perpendiculars Lpp is 363 meters, breadth B 51.2 meters, the draft T 15 meters and the block coefficient CB 0.665. The draft used in the computation is the scantling draft.

이론/모형

  • The convection and diffusion terms are discretized by the QUICK scheme and the 2nd order central-difference, respectively. For the pressure, a modified method of Rhie and Chow is used and for the pressure-velocity coupling the SIMPLEC method is used. As relaxation factors for the convergence of numerical solutions, the following values are used: 0.
  • In order to reproduce the effect of the propeller on the stem flows, the body forces are obtained by using a propeller performance prediction code based on the lifting surface theory.
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참고문헌 (8)

  1. Boo, K-T., C.-B. Hong and K-W. Paik. 2005. Numerical simulation for the self-propulsion, Proceedings of the Annual Autumn Meeting The Society of Naval Architects of Korea, 599-604 

  2. Hong, C.-B., K-T. Boo and H.-J. Yang. 2005. Evaluation of Course Stability Performance for Tanker using CFD, Proceedings of the Annual Spring Meeting The Society of Naval Architects of Korea, 800-805 

  3. Kim, J., K-S. Kim, I.-R. Park and S.-H. Van. 2006. Hybrid RANS and Potential Based Numerical Simulation of Self-Propulsion test for a Practical Ship, Proceedings 7th Internatio-nal Conference on Hydrodynamics, 633-640 

  4. Kim, K.-H., J.-J. Kim and S.-H. Choi. 2005. Computation of Viscous Flow around Hull-Propeller-Ruddeer with Body Force Method, Proceedings of the Annual Autumn Meeting The Society of Naval Architects of Korea, 640-646 

  5. Kim, S.-Y., Y.-G. Kim, Y.-Y. Lee, I-R. Park and S.-W. Lee. 2005. A Study On The Flows Around A Large Container Ship With Twin-Skegs In Oblique And Turning Motion, Proceedings of the 5th Osaka Colloquium, 111-119 

  6. Kim, Y.-G. 2005. A study on the Characteristics of Maneuverability of a Ship with Twin-Skges, Degree of Master of Arts(Doctor of Phiosophy) 

  7. Park, I.-R. , W.-J. Kim and S.-H. Van. 2004. Grid Generation and Flow Analysis around a Twin-skeg Container Ship, Journal of the Society of Naval Architects of Korea, 15-22 

  8. Park, J.-J., Y.-B. Choi and Y.-B. Hwang. 2004. A study on the characteristics of viscous flows around a Hull by Propeller effect, Proceedings of the Annual Autumn Meeting The Society of Naval Architects of Korea, 583-588 

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