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Acta Mechanica Solida Sinica

, Volume 24, Issue 2, pp 117–124 | Cite as

Heat transfer characteristics of conductive material under inner non-uniform electromagnetic fields

  • Huijuan Bai
  • Xiaojing Zheng
Article

Abstract

Electronic transport properties can be influenced by the applied electromagnetic fields in conductive materials. The change of the electron distribution function evoked by outfields obeys the Boltzmann equation. In this paper, a general law of heat conduction considering the non-uniform electromagnetic effect is developed from the Boltzmann equation. An analysis of the equation leads to the result that the electric field gradient and the magnetic gradient in the conductive material are responsible for the influences of electromagnetic fields on the heat conduction process. A physical model is established and finite element numerical simulation reveals that heat conduction can be increased or delayed by the different directions of the electric field gradient, and the existence of the magnetic gradient always hinders heat conduction.

Key words

heat conduction non-uniform electromagnetic field Boltzmann equation 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2011

Authors and Affiliations

  1. 1.Key Laboratory of Mechanics on Western Disaster and Environment, Ministry of Education, PRC, Department of Mechanics and Engineering Science, College of Civil Engineering and MechanicsLanzhou UniversityLanzhouChina

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