Heat transfer in a thin metal film subjected to the ultra-short laser pulse modeled by a nonlinear two-temperature model

• Autorzy: Dziatkiewicz Jolanta , Majchrzak Ewa

Identyfikatory

DOI

10.15632/jtam-pl/185352

• Języki publikacji: EN

Abstrakty

EN

The heating of a thin metal film subjected to the ultra-short laser pulse is presented. Mathe- matical description of this process is based on the system of equations describing the electron and lattice temperatures and dependences between intensity of heat fluxes and temperature gradients supplemented by appropriate boundary and initial conditions. In this approach, a system of four equations needs to be solved. In this paper, another method of solution of the above formulated problem is proposed. Using appropriate mathematical manipulations, instead of four equations, two equations describing the lattice and electron temperature dis- tributions are obtained. This system of two equations is solved using an implicit scheme of the finite difference method. The results obtained using both approaches were compared. They were almost identical, which confirms the correctness of the proposed method.

Słowa kluczowe

EN

microscale heat transfer; two-temperature model; laser; finite difference method

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2024
• Tom: Vol. 62 nr 2
• Strony: 403--413
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Dziatkiewicz Jolanta

• Silesian University of Technology, Department of Computational Mechanics and Engineering, Gliwice, Poland

• https://orcid.org/0000-0002-7500-516X

autor

Majchrzak Ewa

• Silesian University of Technology, Department of Computational Mechanics and Engineering, Gliwice, Poland

• https://orcid.org/0000-0003-3555-2318

Bibliografia

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• 6. 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.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).