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ARTICLE
AN AXISYMMETRIC MODEL FOR SOLID-LIQUID-VAPOR PHASE CHANGE IN THIN METAL FILMS INDUCED BY AN ULTRASHORT LASER PULSE
Jing Huang, Kapil Baheti, J. K. Chen*, Yuwen Zhang
Department of Mechanical & Aerospace Engineering, University of Missouri, Columbia, MO 65201, USA
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2011, 2(1), 1-10. https://doi.org/10.5098/hmt.v2.1.3005
Abstract
An axisymmetric model for thermal transport in thin metal films irradiated by an ultrashort laser pulse was developed. The superheating phenomena
including preheating, melting, vaporization and re-solidification were modeled and analyzed. Together with the energy balance, nucleation dynamics
was employed iteratively to track the solid-liquid interface and the gas kinetics law was used iteratively to track the liquid-vapor interface. The
numerical results showed that higher laser fluence and shorter pulse width lead to higher interfacial temperature, larger melting and ablation depths.
A simplified 1-D model could overestimate temperature response and ablation depth due to the omission of radial heat conduction.
Keywords
Cite This Article
Huang, J., Baheti, K., Chen, J. K., Zhang, Y. (2011). AN AXISYMMETRIC MODEL FOR SOLID-LIQUID-VAPOR PHASE CHANGE IN THIN METAL FILMS INDUCED BY AN ULTRASHORT LASER PULSE.
Frontiers in Heat and Mass Transfer, 2(1), 1–10.