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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
Issue Date
2005-01
Publisher
대한기계학회
Citation
대한기계학회논문집 B, v. 29, No. 1, Page. 1 - 8
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 molten pool during laser melting. Surface temperature decreases with increasing surface defermation, 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=NODE00575216&language=ko_KRhttp://repository.hanyang.ac.kr/handle/20.500.11754/111987
ISSN
1226-4881
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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