Open AccessAnalytical study of the temperature distribution in solids subjected to nonuniform moving heat sources
Author(s) -
Mohamed Hamraoui,
Mounir Chbiki,
Najib Laraqi,
Luís Roseiro
Publication year - 2013
Publication title -
thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci120826071h
Subject(s) - mechanics , materials science , power (physics) , dissipation , maximum temperature , inlet , steady state (chemistry) , distribution (mathematics) , relative velocity , thermodynamics , physics , mathematics , classical mechanics , mechanical engineering , mathematical analysis , chemistry , engineering
We propose in this paper an analytical study of the temperature distribution in a solid subjected to moving heat sources. The power dissipated by the heat sources is considered nonuniform. The study was made in steady state. The model is three-dimensional. It is valid regardless of the relative velocity of the source. We have considered three cases of semi-elliptic distribution of the power with: (i) the maximum at the center of the source, (ii) the maximum at the inlet of the source, (iii) the maximum at the output of the source. These configurations simulate the conformity imperfection of contact due to wear and / or the non-uniformity of contact pressure in frictional devices. We compare the temperature change for these different scenarios and for different relative velocities, considering the same total power dissipation. The reference case is that of a uniform source dissipating the same power
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