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
- 2013.5
- 수록면
- 174 - 178 (5page)
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초록· 키워드
오류제보하기
Shock wave boundary layer interaction flows are often occurred in many high speed engineering devices. These interactions bring many salient features on the local as well as the whole flow field. In past few decades, much understanding has been obtained on the major characteristics of the shock wave boundary layer interaction such as boundary layer separation, reattachment, shock unsteadiness, the interaction length, etc. The shock boundary layer characteristics depends on many parameters like upstream Mach number, Reynolds number, boundary layer characteristics etc, which has been pointed out by many past studies. The surface roughness effect can significantly modify the shock boundary layer characteristics which have not been studied much in the past. For the present study a 2-D CFD study was carried out to simulate the experimental study of Inger and to explore the effect of surface roughness on the shock boundary layer interaction flow field such as separation point, interaction length etc. The accuracy of different turbulence model in predicting the flow physics were also compared. It can be observed that the omega based model predicts the shock interaction under roughness effect more accurately compared to the wall function based k-epsilon and Reynolds stress model. From the results it can also be observed that the upstream influence increases and the shock strength decreases as the wall surface roughness increases. The separation zone decreases with increase in surface roughness due to the reduction in shock strength.
목차
ABSTRACT
1. INTRODUCTION
2. CFD ANALYSIS
3. TURBULENCE MODEL COMPARISON AND VALIDATION
4. RESULTS AND DISCUSSION
5. CONCLUSION
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2014-570-002550685