Asymptotic analysis of heat transfer in composite materials with nonlinear thermal properties

•We study heat transfer through a composite with periodic microstructure.•The thermal conductivity of the constituents is assumed to be temperature-dependent, and it is modeled as a polynomial in terms of the temperature.•Also the thermal resistance between the constituents is taken to be nonlinear....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:International journal of heat and mass transfer 2017-08, Vol.111, p.736-754
Hauptverfasser: Andrianov, Igor V., Topol, Heiko, Danishevskyy, Vladyslav V.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:•We study heat transfer through a composite with periodic microstructure.•The thermal conductivity of the constituents is assumed to be temperature-dependent, and it is modeled as a polynomial in terms of the temperature.•Also the thermal resistance between the constituents is taken to be nonlinear.•In order to determine the effective thermal properties of the material, we apply the asymptotic homogenization method.•We discuss different approaches to determine these effective properties for the different volume fractions of the inclusions.•For high volume fractions of the inclusion, we apply the lubrication theory.•In the case of low volume fractions of the inclusions, we apply the three-phase model.•Comparing some special cases of our results to existing ones in the literature shows a good accuracy. We study heat transfer through a composite with periodic microstructure. The thermal conductivity of the constituents is assumed to be temperature-dependent, and it is modeled as a polynomial in terms of the temperature. The thermal resistance between the constituents is taken to be nonlinear. In order to determine the effective thermal properties of the material, we apply the asymptotic homogenization method. We discuss different approaches to determine these effective properties for the different volume fractions of the inclusions. For high volume fractions of the inclusion, we apply the lubrication theory. In the case of low volume fractions of the inclusions, we apply the three-phase model. Comparing some special cases of our results to existing ones in the literature shows a good accuracy.
ISSN:0017-9310
1879-2189
DOI:10.1016/j.ijheatmasstransfer.2017.03.124