<abstract xmlns="http://www.w3.org/1999/xhtml"><p>We analyze the consequences of the nonlinear terms in the heat-transport equation of the thermomass theory on heat pulses propagating in a nanowire in nonequilibrium situations. As a consequence of the temperature dependence of the speeds of propagation, in temperature ranges wherein the specific heat shows negligible variations, heat pulses will shrink (or extend) spatially, and will increase (or decrease) their average temperature when propagating along a temperature gradient. A comparison with the results predicted by a different theoretical proposal on the shape of a propagating heat pulse is made, too.</p></abstract>

We analyze the consequences of the nonlinear terms in the heat-transport equation of the thermomass theory on heat pulses propagating in a nanowire in nonequilibrium situations. As a consequence of the temperature dependence of the speeds of propagation, in temperature ranges wherein the specific heat shows negligible variations, heat pulses will shrink (or extend) spatially, and will increase (or decrease) their average temperature when propagating along a temperature gradient. A comparison with the results predicted by a different theoretical proposal on the shape of a propagating heat pulse is made, too.

Heat-pulse propagation along nonequilibrium nanowires in thermomass theory

Department of Industrial Engineering, University of Salerno, Fisciano, Italy

Department of Mathematics and Computer Science, University of Messina, Messina, Italy

Department of Mathematics, Computer Science and Economics, University of Basilicata, Potenza, Italy

Communications in Applied and Industrial Mathematics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Heat-pulse propagation along nonequilibrium nanowires in thermomass theory"}

We analyze the consequences of the nonlinear terms in the heat-transport equation of the thermomass theory on heat pulses propagating in a nanowire in...

Heat-pulse propagation along nonequilibrium nanowires in thermomass theory

Pubblicato online: 20 mag 2016

Pagine: 39 - 55

Ricevuto: 16 dic 2014

Accettato: 09 mar 2015

DOI: https://doi.org/10.1515/caim-2016-0005

Parole chiave
heat-waves propagation, nonlinear effects, energy-pulse propagation, thermomass theory

© 2016 Antonio Sellitto et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Heat-pulse propagation along nonequilibrium nanowires in thermomass theory

Pubblicato online: 20 mag 2016

Pagine: 39 - 55

Ricevuto: 16 dic 2014

Accettato: 09 mar 2015

DOI: https://doi.org/10.1515/caim-2016-0005

Parole chiaveheat-waves propagation, nonlinear effects, energy-pulse propagation, thermomass theory

© 2016 Antonio Sellitto et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
heat-waves propagation, nonlinear effects, energy-pulse propagation, thermomass theory