A Numerical Study of Heat Transfer Behavior in Welding

reportActive / Technical Report | Accession Number: ADA350125 | Open PDF

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 Rosenthals three-dimensional solution for a moving point heat source, and other results in the literature.

Author(s):
Isiklar, Yasar V.
Author Organization(s):
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Descriptive Note:
Master's thesis
Pagination:
0125

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
NAVSEA
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.6_Engineering
Modernization Areas:
Quantum Science and Computing
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*HEAT TRANSFER, *NUMERICAL ANALYSIS, *WETTING, *UNDERWATER, *WELDING, THERMAL PROPERTIES, MATHEMATICAL MODELS, VALIDATION, THESES, RADIATIVE TRANSFER, SOLIDS, MESH, SURFACES, THREE DIMENSIONAL, THERMAL CONDUCTIVITY, NAVAL RESEARCH, METAL PLATES, CONVECTION(HEAT TRANSFER), BOILING, UNDERWATER EQUIPMENT, UNDERWATER TOOLS
Field(s)/Group(s):
Properties of Metals and Alloys, Submarine Engineering, Thermodynamics
Keyword(s):
UNDERWATER WET WELDING, FINITE VOLUME METHOD, ROSENTHAL S SOLUTION
Report Date:
1998 Jun 01
Creation Date:
1998 Aug 12