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

The Society of Naval Architects of Korea (대한조선학회)
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Development of Numerical Tool for the DNS/LES of Turbulent Flow for Frictional Drag Reduction

마찰저항감소를 위한 난류유동의 DNS/LES 해석기술의 개발

  • ;
  • ;
  • Osama A. El-Samni ;
  • ;
  • 윤현식 (부산대학교 첨단조선공학연구센터) ;
  • 구본국 (부산대학교 조선해양공학과) ;
  • ;
  • 박종천 (부산대학교 조선해양공학과) ;
  • 전호환 (부산대학교 조선해양공학과)
  • Published : 2004.02.01
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Abstract

The friction drag reduction of a ship is of prime importance for the design and production of high-valued/high-tech ship. Thus, this study carried out the development of reliable numerical tools to identify the friction drag reduction mechanism for turbulent boundary layer on the ship surface and to deduce the optimum reduction technique by numerical experiment. The developed LES and DNS numerical tools were applied to simulate the turbulent channel flow These results were very well matched with previous results not only qualitatively but also quantitatively. The parallelization using MPI (Message Passing Interface) technique implemented in the developed code to speed up the simulation and to obtain the accurate results from the fine grid system was testified its computational efficiency.

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References

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