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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.9
- 수록면
- 27 - 34 (8page)
- DOI
- 10.6112/kscfe.2023.28.3.027
이용수
초록· 키워드
Calculating the flow field with complex geometry is one of the essential features of computational fluid dynamics. For finite volume formulation, a body fitted grid was usually utilized for such geometry. However, the immersed boundary method has become very popular these days since it can be applicable to a simple Cartesian coordinate system which uses finite difference schemes. It becomes much more effective along with two-phase flow modeling which is using continuous surface tension source formulation (CSF). There are several options for the immersed boundary techniques. Here, we are focused on the direct forcing method which is basically a ghost type approach. We tried to check the accuracy depending on forcing methods. Several forcing methods have been tested including linear velocity interpolation, stepwise or heaviside velocity filtering for the ghost nodes. We also tested a volume weighted velocity filtering approach for increased accuracy. For the benchmarking test, a flow field around the cylinder has been selected for comparison of the accuracy of different formulations.
#가상경계법(Immersed Boundary Method)
#직접강제방법(Direct Forcing)
#유한차분(finite difference)
#속도보간(Velocity Interpolation)
#벤치마킹(Benchmarking)
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목차
- 1. 서론
- 2. 수치해석 모델
- 3. 결과 및 해석
- 4. 결론
- References
참고문헌
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