Investigation of non-Fourier thermal waves interaction in a solid material

• Autorzy: Lenarczyk Marcin , Domański Roman

Identyfikatory

DOI

10.24425/ather.2019.128293

• Języki publikacji: EN

Abstrakty

EN

In this paper, effects of non-Fourier thermal wave interactions in a thin film have been investigated. The non-Fourier, hyperbolic heat conduction equation is solved, using finite difference method with an implicit scheme. Calculations have been carried out for three geometrical configurations with various film thicknesses. The boundary condition of a symmetrical temperature step-change on both sides has been used. Time history for the temperature distribution for each investigated case is presented. Processes of thermal wave propagation, temperature peak build-up and reverse wave front creation have been described. It has been shown that (i) significant temperature overshoot can appear in the film subjected to symmetric thermal load (which can be potentially dangerous for reallife application), and (ii) effect of temperature amplification decreases with increased film thickness.

Słowa kluczowe

EN

non-Fourier equation; heat waves; hyperbolic heat conduction; thermal wave interaction

PL

fale cieplne; przewodzenie ciepła

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2019
• Tom: Vol. 40, no 1
• Strony: 115--126
• Opis fizyczny: Bibliogr. 15 poz., rys., wz.

Twórcy

autor

Lenarczyk Marcin

• Institute of Aviation al. Krakowska 110/114, 02-256 Warsaw, Poland

autor

Domański Roman

• Institute of Aviation al. Krakowska 110/114, 02-256 Warsaw, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).