Non-reflective boundary conditions for a consistent model of axisymmetric electro- magneto-hydrodynamic flows
Article
Ko, HJ, Dulikravich, GS. (1999). Non-reflective boundary conditions for a consistent model of axisymmetric electro- magneto-hydrodynamic flows
. 249 97-104.
Ko, HJ, Dulikravich, GS. (1999). Non-reflective boundary conditions for a consistent model of axisymmetric electro- magneto-hydrodynamic flows
. 249 97-104.
In this paper, the non-reflective boundary conditions for the axisymmetric electro-magneto-hydrodynamic (EMHD) flows have been derived. The electro-magneto-hydrodynamics (EMHD) deals with the motion of electrically conducting incompressible fluids under the combined influence of externally applied and internally generated electric and magnetic fields. A consistent axisymmetric EMHD flow model with linear constitutive relations and artificial compressibility was expressed in cylindrical coordinates. After some simplifications, the resulting EMHD system comprised of modified Maxwell equations for the electro-magnetic fields and modified Navier-Stokes equations for the flow-field, was transformed to a characteristic form, and the non-reflective boundary conditions were derived. The results show the strong mutual interactions between the axisymmetric flow-field and the electro-magnetic fields. The limiting cases, including the conventional axisymmetric flow-field model and the electro-magnetic field model in vacuum, are recoverable from these results.
