The Interaction of DC Plasma Jet with a Melting Metal: Experimental Measurements and Mathematical Description.

Abstract

This investigation was concerned with the experimental and theoretical study of the interaction of a transferred arc plasma jet with a metal block onto which this jet impinges. Problems of this type are of interest in plasma arc remelting processes and also in welding. The study had both experimental and analytical (mathematical) modelling components. The experimental work involved the construction of an apparatus which is essence consisted of a 20 kW plasma jet impinging onto a hemispherical steel block of 200 mm diameter. The experiment measured the voltage, the current, the plasma gas flow rate and the evolution of the temperature fields as the metal block was heated up and partially melted.

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Document Details

Document Type
Technical Report
Publication Date
May 21, 1987
Accession Number
ADA185173

Entities

People

  • Julian Szekely

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Engineering
  • Equations
  • Flow
  • Flow Rate
  • Fluid Flow
  • Gas Flow
  • Heat Transfer
  • Materials
  • Materials Engineering
  • Materials Science
  • Mathematical Models
  • Military Research
  • Navier Stokes Equations
  • Plasma Jets
  • Stratified Fluids
  • Thermal Conductivity

Readers

  • Metallurgy
  • Pulsed Power and Plasma Physics.
  • Theoretical Analysis.