Heat conduction in microstructured solids under localised pulse loading

0543497 - ÚT 2022 RIV DE eng J - Journal Article
Berezovski, Arkadi
Heat conduction in microstructured solids under localised pulse loading.
Continuum Mechanics and Thermodynamics. Roč. 33, č. 6 (2021), s. 2493-2507. ISSN 0935-1175. E-ISSN 1432-0959
R&D Projects: GA MŠMT(CZ) EF15_003/0000493
Institutional support: RVO:61388998
Keywords : heat conduction * microstructured solids * internal variables
OECD category: Thermodynamics
Impact factor: 3.285, year: 2021
Method of publishing: Limited access
https://link.springer.com/article/10.1007/s00161-021-01032-0

The influence of a microstructure on heat conduction in solids is studied using the internal variable approach. Two variants of the internal variable treatment are compared by means of the numerical simulation of two-dimensional heat conduction in a plate under a localised thermal pulse loading. Computation of the same problem by the different internal variable descriptions produces qualitatively dissimilar results. The single internal variable approach leads to a diffusional type of the internal variable evolution. In contrast, the dual internal variable technique provides a wave-like evolution of the internal variables and, as the consequence, the corresponding wave-like heat transfer. The results are obtained in the dimensionless form, and parameters of models are chosen to emphasise the features of each model.
Permanent Link: http://hdl.handle.net/11104/0323086