Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Large-Eddy Simulation of Turbulent Channel Flow Using a Viscous Numerical Wave Tank Simulation Technique

점성 수치파랑수조 기술을 이용한 평판간 난류유동의 LES 해석

  • 박종천 (부산대학교 조선해양공학과) ;
  • 강대환 (부산대학교 조선해양공학) ;
  • 윤현식 (부산대학교 조선해양공학) ;
  • 전호환 (부산대학교 조선해양공학과)
  • Published : 2004.04.01
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Abstract

As the first step to investigate the nonlinear interactions between turbulence and marine structures inside a viscous NWT, a LES technique was applied to solve the turbulent channel flow for =150. The employed turbulence models included 4 types: the Smagorinsky model, the Dynamic SGS model, the Structure Function model, and the Generalized Normal Stress model. The simulated data in time-series for the LESs were averaged in both time and space, and statistical analyses were performed. The results of the LESs were compared with those of a DNS, developed in the present study and two spectral methods by Yoon et al.(2003) and Kim et a1.(1987). Based on this research, the accuracy of LESs has been found to be still related to the number of grids for fine grid size).

Keywords

References

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