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A continuum theory for two phase media

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Summary

A continuum theory of a two phase solid-fluid media is formulated. The basic balance laws for the solid phase as well as for the fluid phase are presented. Based on thermodynamical consideration a set of constitutive equations are derived and the basic equations of motions of the distributed solid and fluid continua are obtained and discussed. It is shown that the theory contains as its special cases, Mohr-Coulomb criterion of limiting equilibrium of granular materials, Saffman theory of dusty gas, as well as Darcy's law of flow through porous media. It is then concluded that the present theory covers the full spectrum of two phase solid-fluid media from low porosity granular media with Darcy's law of fluid motion to low and high concentration two phase flows such as dusty gas and blood flow.

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  1. Department of Mechanical and Industrial Engineering, Clarkson College, Potsdam, New York, U.S.A.

    G. Ahmadi

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Ahmadi, G. A continuum theory for two phase media. Acta Mechanica 44, 299–317 (1982). https://doi.org/10.1007/BF01303343

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  • DOI: https://doi.org/10.1007/BF01303343

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