Analytical study of the temperature distribution in solids subjected to nonuniform moving heat sources

Thermal Science

关键词: analytical solution;    advection-diffusion problem;    nonuniform moving heat sources;    sliding contact;   

DOI  :  10.2298/TSCI120826071H

来源: DOAJ

【 摘 要 】

We propose in this paper an analytical study of the temperature distributionin a solid subjected to moving heat sources. The power dissipated by the heatsources is considered nonuniform. The study was made in steady state. Themodel is three-dimensional. It is valid regardless of the relative velocityof the source. We have considered three cases of semi-elliptic distributionof the power with: (i) the maximum at the center of the source, (ii) themaximum at the inlet of the source, (iii) the maximum at the output of thesource. These configurations simulate the conformity imperfection of contactdue to wear and / or the non-uniformity of contact pressure in frictionaldevices. We compare the temperature change for these different scenarios andfor different relative velocities, considering the same total powerdissipation. The reference case is that of a uniform source dissipating thesame power.

【 授权许可】

Unknown