Nonequilibrium Theory of Viscoelastic Magnetic Fluids

  • Ido Yasushi
    Department of Mechanical Engineering, Faculty of Science and Technology, Keio University
  • Tanahashi Takahiko
    Department of Mechanical Engineering, Faculty of Science and Technology, Keio University

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  • Nonequilibrium Theory of Viscoelastic M

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A new complete set of equations for magnetic fluids is derived using the thermodynamical method and micropolar theory. The present constitutive equations, which take consideration of both viscoelasticity and internal freedom, satisfy the principle of material frame indifference. It is shown that the constitutive equations of magnetization is related to the magnetic field, its change in time and angular velocity of suspended particles. Furthermore, it is made clear that the electromagnetic pressure is independent of the dissipative parts of the magnetization and the electric polarization.

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