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
- 2012.5
- 수록면
- 1,144 - 1,148 (5page)
이용수
초록· 키워드
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A vortex-in-cell (VIC) method for resolved-scale turbulent flew in wake oj two-dimensional hydrofoils is presented As a turbulence modeling, the Smagorinsky model is used to resolve the eddies. The well-established panel method is used together with the Lagrangian approach for solving the vorticity transport equation in time-marching analysis.
Besides the irrotational velocity component obtained by the panel method, the rotational velocity component is calculated from the Poisson equation representing relationship between vorticity and vector streamfunction. In mumerical implementation of the Poisson equation, we take Fast Fourier Transform scheme coupled with concept of the immersed boundary method using uniformly rectangular grids.
With the calculated irrotational and rotational velocity components, we apply the m-penetration boundary condition on the body surface as well as the w-slip condition.
In order to validate this VIC method with LES model the results are compared with commercial code. The results between VIC method and commercial code show that they are well matched.
Besides the irrotational velocity component obtained by the panel method, the rotational velocity component is calculated from the Poisson equation representing relationship between vorticity and vector streamfunction. In mumerical implementation of the Poisson equation, we take Fast Fourier Transform scheme coupled with concept of the immersed boundary method using uniformly rectangular grids.
With the calculated irrotational and rotational velocity components, we apply the m-penetration boundary condition on the body surface as well as the w-slip condition.
In order to validate this VIC method with LES model the results are compared with commercial code. The results between VIC method and commercial code show that they are well matched.
목차
Abstract
1. 서론
2. 배경 이론
3. 계산 대상 및 계산 조건
4. 계산 결과
5. 결론
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UCI(KEPA) : I410-ECN-0101-2013-472-003621817