The Analysis of Magnetohydrodynamics and Plasma Dynamics in Metals Processing Operations

  • C. W. Chang
  • J. Szekely
  • T. W. Eagar
Part of the Sagamore Army Materials Research Conference Proceedings book series (SAMC, volume 25)


The principles of magnetohydrodynamics and plasma dynamics are reviewed in terms of their applications to fluid flow behavior in metals processing operations. The mathematical formulation of the problem is described in detail, while specific examples include induction stirring, electroslag welding, electric arc melting, and arc welding. It is shown that the calculated predictions of flow behavior in these operations correspond closely to the experimental data and, hence, the procedure outlined provides a useful new tool in understanding metals processing systems.


Lorentz Force Welding Current Induction Furnace Plasma Dynamics Fluid Flow Behavior 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


magnetic flux density


characteristic magnetic flux density

electric field


characteristic frequency; distribution function

force; Lorentz force


body force; Lorentz force


magnetic field intensity

current density


current density of coil or arc


characteristic length







coordinate vector


radius of cathode


gas constant






characteristic velocity


maximum velocity along the axis of the arc

velocity vector


permittivity of free space


molecular viscosity


magnetic permeability of free space




electrical conductivity


stress tensor


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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • C. W. Chang
    • 1
  • J. Szekely
    • 1
  • T. W. Eagar
    • 1
  1. 1.Department of Materials Science and EngineeringMassachusetts Institute of TechnologyCambridgeUSA

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