Numerical and analytical study of the propagation of thermoelastic waves in a medium with heat-flux relaxation
- Authors: Vitokhin E.Y.1, Babenkov M.B.1
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Affiliations:
- St. Petersburg State Polytechnic University
- Issue: Vol 57, No 3 (2016)
- Pages: 537-549
- Section: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/159426
- DOI: https://doi.org/10.1134/S0021894416030184
- ID: 159426
Cite item
Abstract
The thermoelastic problem of laser exposure of metals and dielectrics is studied taking into account the finite speed of propagation of thermal waves and using a numerical finite-difference algorithm. The resulting numerical solution is compared with the analytical one. The problem is solved in coupled and uncoupled formulations. The solutions of the hyperbolic thermoelastic problem are compared with the solutions of the classical problem. Analytical expressions are obtained for the propagation speeds of the thermoelastic wave components. Times are determined at which the difference between the solutions of the hyperbolic and classical thermoelastic problems can be detected experimentally.
About the authors
E. Yu. Vitokhin
St. Petersburg State Polytechnic University
Author for correspondence.
Email: evitokhin@yandex.ru
Russian Federation, St. Petersburg, 195251
M. B. Babenkov
St. Petersburg State Polytechnic University
Email: evitokhin@yandex.ru
Russian Federation, St. Petersburg, 195251