지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2001.11
- 수록면
- 547 - 552 (6page)
이용수
초록· 키워드
오류제보하기
A finite element code based on P2PI or PIPI tetra element has been developed for the large eddy simulation (LES) of turbulent flows around a complex geometry. Fractional 4-step algorithm is employed to obtain time accurate solution since it is less expensive than the integrated formulation, in which the velocity and pressure fields are solved at the same time. Crank-Nicolson method is used for second order temporal discretizarion and Galerkin method is adopted for spatial discretization. For very high Reynolds number flows, which would require a fom1idable number of nodes to resolve the flow field, SUPG (Streamline Upwind Petrow-Galerkin) method is applied. As a benchmark problem for code validation. turbulent flows around a sphere and turbulent channel flows
have been studied at various Reynolds numbers. Turbulent flow around MIRA model has been solved using P2PI element and Smagorinsky model at Re= 2.6 x 106. Furthermore, a parallel code based on domain-decomposition method using PIPI element has been developed for LES of turbulent flow and tested with turbulent channel flows. Turbulent flow analysis around MIRA model using the present LES-parallel code is ongoing and will be presented in the near future
have been studied at various Reynolds numbers. Turbulent flow around MIRA model has been solved using P2PI element and Smagorinsky model at Re= 2.6 x 106. Furthermore, a parallel code based on domain-decomposition method using PIPI element has been developed for LES of turbulent flow and tested with turbulent channel flows. Turbulent flow analysis around MIRA model using the present LES-parallel code is ongoing and will be presented in the near future
목차
ABSTRACT
1. 서론
2. 지배방정식 및 수치기법
3. 수치결과
4. 결론
후기
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UCI(KEPA) : I410-ECN-0101-2009-556-014008340