ITM Web of Conferences (Jan 2017)

Intensive wave power and steel quenching 3-D model for cylindrical sample. Time direct and reverse formulations and solutions

  • Buikis Andris,
  • Buike Margarita

DOI
https://doi.org/10.1051/itmconf/20170901003
Journal volume & issue
Vol. 9
p. 01003

Abstract

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In this paper we develop mathematical models for three dimensional hyperbolic heat equations (wave equation or telegraph equation) with inner source power and construct their analytical solutions for the determination of the initial heat flux for cylindrical sample. As additional conditions the temperature and heat flux at the end time are given. In some cases we give expression of wave energy. In some cases we give expression of wave energy. Some solutions of time inverse problems are obtained in the form of first kind Fredholm integral equation, but others has been obtained in closed analytical form as series. We viewed both direct and inverse problems at the time. For the time inverse problem we use inversion in the time argument.