A Numerical Study of Heat Transfer Behavior in Welding

Abstract

A numerical model has been developed for three-dimensional transient conduction based temperature calculations in underwater wet welding on a thick rectangular plate. The numerical scheme is based on a fully implicit finite volume method. A variable mesh size centered around the moving heat source, and temperature dependent thermal properties have been used in the calculations. Convective, radiative and boiling surface thermal conditions have also been inciuded. The weld pool region itself has been modeled as a solid region of thermal conductivity higher than the surrounding unmelted region. The validity of the results was checked by comparison with Rosenthal's three-dimensional solution for a moving point heat source, and other results in the literature.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADA350125

Entities

People

  • Yasar V. Isiklar

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Buoyancy
  • Computational Fluid Dynamics
  • Energy
  • Energy Transfer
  • Fluid Dynamics
  • Fluid Flow
  • Geometry
  • Heat Energy
  • Heat Transfer
  • Heat Transfer Coefficients
  • Heat Transmission
  • Latent Heat
  • Mathematical Analysis
  • Numerical Analysis
  • Tensile Strength
  • Thermal Conductivity
  • Three Dimensional

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Metallurgy
  • Thermal Physics or Thermal Science.