동적인 자유표면을 가진 동심원통에서의 열모세관 대류
- Title
- 동적인 자유표면을 가진 동심원통에서의 열모세관 대류
- Other Titles
- Dynamic Free-Surface Deformations in Axisymmetric Thermocapillary Convection in Open Cylindrical Annuli
- Author
- 김우승
- Keywords
- Dynamic Surface Deformation(동적인 자유표면 변형); Thermocapillary Convection (열모세관 대류); Cylindrical Annuli(동심원통)
- Issue Date
- 2003-04
- Publisher
- 대한기계학회
- Citation
- 대한기계학회 춘추학술대회 v. 2003, no. 4, page. 1560-1565
- Abstract
- Thermocapillary convection in an open cylindrical annulus heated from the inside wall is investigated by two-dimensional numerical simulations. The deformable free surface is obtained as a solution of the coupled transport equations at fixed Prandtl and aspect ratio. Only steady convection can be realized in this axisymmetric computations with either non-deformable or deformable surfaces. Dynamic free-surface deformations do not induce transitions to oscillatory convection even at large Reynolds numbers. Free surfaces are convex near the cold wall due to the stagnation point, and concave near the hot wall. Free surface deformation increases with increasing Ca at a fixed Re. Two peaks appear at the free surface with low Re, while additional ripples, four peaks, occur at larger Re. Thermocapillary convection in the open annulus interior is insensitive to variations in Ca.
- URI
- http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00547627https://repository.hanyang.ac.kr/handle/20.500.11754/155314
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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