TY - JOUR
T1 - Computational study of heat transfer and gas dynamics in the pulsed laser evaporation of metals
AU - Ho, J. R.
AU - Grigoropoulos, Costas P.
AU - Humphrey, J. A.C.
PY - 1994
Y1 - 1994
N2 - A computational approach is presented for the heat transfer and fluid flow phenomena in pulsed laser processing of materials. The heat conduction in the solid substrate and the liquid melt is solved by a one-dimensional transient heat transfer model. The compressible gas dynamics is computed numerically by solving the system of Euler equations for mass, momentum and energy, supplemented by an isentropic gas equation of state. Aluminum, copper and gold targets were subjected to pulsed ultraviolet excimer laser irradiation of nanosecond duration. Results are presented for the temperature distribution, evaporation rate and melting depth in the target, as well as the pressure, velocity, and temperature distributions in the vapor phase.
AB - A computational approach is presented for the heat transfer and fluid flow phenomena in pulsed laser processing of materials. The heat conduction in the solid substrate and the liquid melt is solved by a one-dimensional transient heat transfer model. The compressible gas dynamics is computed numerically by solving the system of Euler equations for mass, momentum and energy, supplemented by an isentropic gas equation of state. Aluminum, copper and gold targets were subjected to pulsed ultraviolet excimer laser irradiation of nanosecond duration. Results are presented for the temperature distribution, evaporation rate and melting depth in the target, as well as the pressure, velocity, and temperature distributions in the vapor phase.
UR - http://www.scopus.com/inward/record.url?scp=0028736169&partnerID=8YFLogxK
M3 - 會議論文
AN - SCOPUS:0028736169
SN - 0272-5673
VL - 291
SP - 71
EP - 83
JO - American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
JF - American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
T2 - Proceedings of the 1994 International Mechanical Engineering Congress and Exposition
Y2 - 6 November 1994 through 11 November 1994
ER -