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dc.contributor.author김우승-
dc.date.accessioned2019-11-08T00:41:38Z-
dc.date.available2019-11-08T00:41:38Z-
dc.date.issued2005-08-
dc.identifier.citationINTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, v. 26, No. 4, Page. 613-621en_US
dc.identifier.issn0142-727X-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0142727X05000366-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/111985-
dc.description.abstractIn this study, numerical investigation has been performed on the evolution of weld pool geometry with moving free surface during low-energy density laser welding process. The free surface elevates near the weld pool edge and descends at the center if d sigma/dT is dominantly negative. It is shown that the predicted width and depth of the weld pool with moving free surface are a little greater than those with flat weld pool surface. It is also believed that the oscillation of the weld pool surface during the melting process augments the rate of convective heat transfer in the weld pool. The present analysis with moving free surface should be considered when Peclet number is greater and Weber number is much smaller than one since the deformation of the weld pool surface is noticeable as Pe number increases and We number decreases, especially when root Pe/We is greater than the order of 10. (c) 2005 Elsevier Inc. All rights reserved.en_US
dc.description.sponsorshipThis work was supported by Korea Research Foundation Grant (KRF-2002-041-D00071).en_US
dc.language.isoen_USen_US
dc.publisherELSEVIER SCIENCE INCen_US
dc.subjectlaser weldingen_US
dc.subjectfree surface flowen_US
dc.subjectMarangoni convectionen_US
dc.subjectcontinuum surface forceen_US
dc.titleA Study of low-power density laser welding process with evolution of free surfaceen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.ijheatfluidflow.2005.03.009-
dc.relation.journalINTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW-
dc.contributor.googleauthorHa, Eung-Ji-
dc.contributor.googleauthorKim, Woo-Seung-
dc.relation.code2009204215-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF ENGINEERING SCIENCES[E]-
dc.sector.departmentDEPARTMENT OF MECHANICAL ENGINEERING-
dc.identifier.pidwskim-
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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