THREE-DIMENSIONAL MODEL FOR CONVECTION IN LASER MELTED POOL.

Cholik Chan, J. Mazumder, M. M. Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

A three-dimensional axis-symmetry model of the fluid flow and heat transfer of laser melted pool is developed. The model corresponds physically to a stationary laser source. Non-dimensional forms of the governing equations are derived. Four dimensionless parameters arise from the non-dimensionalization, namely, Marangoni number, Prandtl number, Dimensionless melting temperature, and Radiation factor. Their effects and significances are discussed. Numerical solutions are obtained. The solid liquid interface, which is not known a priori, is solved. Quantitative effects of the dimensionless parameters on pool shape are obtained. In the presence of the flow field, the heat transfer becomes convection dominated. Its effect on isotherms within the molten pool is discussed. Experimental results are presented.

Original languageEnglish (US)
Title of host publicationLIA (Laser Institute of America)
PublisherLaser Inst of America
Pages17-27
Number of pages11
Volume43-48
ISBN (Print)0912035250
StatePublished - 1985
Externally publishedYes

Fingerprint

Heat convection
Lasers
Prandtl number
Isotherms
Melting point
Molten materials
Flow of fluids
Flow fields
Heat transfer
Radiation
Liquids
Convection

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Chan, C., Mazumder, J., & Chen, M. M. (1985). THREE-DIMENSIONAL MODEL FOR CONVECTION IN LASER MELTED POOL. In LIA (Laser Institute of America) (Vol. 43-48, pp. 17-27). Laser Inst of America.

THREE-DIMENSIONAL MODEL FOR CONVECTION IN LASER MELTED POOL. / Chan, Cholik; Mazumder, J.; Chen, M. M.

LIA (Laser Institute of America). Vol. 43-48 Laser Inst of America, 1985. p. 17-27.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chan, C, Mazumder, J & Chen, MM 1985, THREE-DIMENSIONAL MODEL FOR CONVECTION IN LASER MELTED POOL. in LIA (Laser Institute of America). vol. 43-48, Laser Inst of America, pp. 17-27.
Chan C, Mazumder J, Chen MM. THREE-DIMENSIONAL MODEL FOR CONVECTION IN LASER MELTED POOL. In LIA (Laser Institute of America). Vol. 43-48. Laser Inst of America. 1985. p. 17-27
Chan, Cholik ; Mazumder, J. ; Chen, M. M. / THREE-DIMENSIONAL MODEL FOR CONVECTION IN LASER MELTED POOL. LIA (Laser Institute of America). Vol. 43-48 Laser Inst of America, 1985. pp. 17-27
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