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논문 기본 정보

자료유형
학술저널
저자정보
Gisu Song (National Maritime & Ocean University) Sungwook Lee (National Maritime & Ocean University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제48권 제5호
발행연도
2024.10
수록면
324 - 330 (7page)
DOI
10.5916/jamet.2024.48.5.324

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초록· 키워드

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Several Hybrid RANS/LES methods which combine advantages of RANS and LES(or DNS) has been proposed. These methods can be very practical for real engineering problems since the required number of grids can be much less than that of LES(or DNS) and unsteady features of flow can predict more realistic than RANS simulation. In this paper, PANS which is one of Hybrid RANS/LES methods is investigated. To know the capability of PANS, two benchmark problems with different flow characteristics were applied with RANS simulation. First benchmark problem is the flow past a wall mounted square cylinder. It is well known that this flow is naturally unstable due to Karman vortex shedding and has complex flow structures in the wake region. Second benchmark problem is the flow around ship which is chosen as the KCS. The ship is a representative streamlined body, and three dimensional weak flow separation is induced. In this paper, based on these flows, the simulation results from RANS and PANS were compared. And the k-ω turbulence model is applied for RANS and PANS simulations with open source code.

목차

Abstract
1. Introduction
2. Numerical set-up
3. Computational Detail
4. Results
4. Conclusion
References

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