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 language | English (US) |
|---|---|
| Title of host publication | LIA (Laser Institute of America) |
| Publisher | Laser Inst of America |
| Pages | 17-27 |
| Number of pages | 11 |
| Volume | 43-48 |
| ISBN (Print) | 0912035250 |
| State | Published - 1985 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - THREE-DIMENSIONAL MODEL FOR CONVECTION IN LASER MELTED POOL.
AU - Chan, Cholik
AU - Mazumder, J.
AU - Chen, M. M.
PY - 1985
Y1 - 1985
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=17144471797&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17144471797&partnerID=8YFLogxK
M3 - Conference contribution
SN - 0912035250
VL - 43-48
SP - 17
EP - 27
BT - LIA (Laser Institute of America)
PB - Laser Inst of America
ER -