굴곡의 표면을 가진 금속의 레이저 용융에 대한 열 및 유체유동 해석
- Title
- 굴곡의 표면을 가진 금속의 레이저 용융에 대한 열 및 유체유동 해석
- Other Titles
- An Analysis of Heat and Fluid Flow in the Laser Surface Melting with a Deformed Surface
- Author
- 김우승
- Keywords
- Laser Melting; Thermocapillary Convention; Deformed Surface; 레이저 용융; 열모세관 대류; 굴곡의 표면
- Issue Date
- 2003-11
- Publisher
- 대한기계학회
- Citation
- 대한기계학회 2003년 추계학술대회논문집, page. 139-144
- Abstract
- Laser melting problems with deformed substrates are investigated by axisymmetric numerical simulations.
Source-based method is used to solve the energy equation, and the momentum equations are solved in the
liquid domain with SIMPLER algorithm. Using a laser beam with a top-hat heat flux distribution, this study is
performed to examine the effect of surface deformation, beam power density and surface tension force on the
melt pool during laser melting. Surface temperature decreases with increasing surface deformation, while
surface velocity increases. It is found that surface deformation, beam power density and surface tension force
have a very significant effect on heat transfer and fluid flow during laser melting.
- URI
- http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00548935https://repository.hanyang.ac.kr/handle/20.500.11754/156523
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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