Electromagnetic Interaction on Micropolar Fluids

Abstract

Basic equations for micropolar fluids in an electromagnetic field have not been established yet. In this paper, relativistic electromagnetic interactions on micropolar fluids are investigated by electromagnetic exergy. We have obtained the results that electromagnetic momentum for micropolar fluid is well defined as g=D×B and an isotropic part of the Maxwellian stress tensor can be expressed by electromagnetic exergy. Then, as a result of thermodynamical consideration for micropolar fluids, Gibbs' relation for micropolar fluids equals that for nonpolar fluids. Using Onsagar's reciprocal theorem, the dissipative parts of the constitutive equations have been derived more generally and easily for micropolar fluids than theories previously presented.