Modeling of heat transfer and fluid flow in fusion welding

J. Zhou, L. Y. Sun, A. Khalilollahi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Fusion welding (gas metal arc welding, laser welding, etc.) is a major joining technique adopted by many industries like auto, aerospace, shipbuilding, etc. Depends on applications, some require deep welding with strong bonding, some require small heat affected zones in welds (HAZ), some may require fast welding speed with good weld quality. In order to meet these requirements and achieve quality welds with no porosity and cracking, heat transfer and fluid flow processes must be well understood. However, there are many factors (process parameters) in real welding that can affect the heat transfer and fluid flow in weld pool and subsequent welds, thus affecting the quality of the final weld, studies of welding processes through traditional trial-and-error approach is very time consuming and becomes very challenging especially when studies of dynamics phenomena in welding are required. With the recent improved understandings of the welding physics and advance of computational techniques, computer modeling of welding processes is getting feasible. In this study, a comprehensive mathematical model and the associated computational modes will be developed and used to study transient energy transfer and melt flow in laser-based welding, thus providing an effective tool to further study and optimize laser-based welding processes to achieve quality welds.

Original languageEnglish (US)
Title of host publicationProceedings of the 1st Thermal and Fluid Engineering Summer Conference, TFESC 2015
PublisherBegell House Inc.
Number of pages10
ISBN (Electronic)9781567004311
StatePublished - 2015
Event1st Thermal and Fluid Engineering Summer Conference, TFESC 2015 - New York City, United States
Duration: Aug 9 2015Aug 12 2015

Publication series

NameProceedings of the Thermal and Fluids Engineering Summer Conference
ISSN (Electronic)2379-1748


Conference1st Thermal and Fluid Engineering Summer Conference, TFESC 2015
Country/TerritoryUnited States
CityNew York City

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Electrical and Electronic Engineering
  • Fluid Flow and Transfer Processes
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment


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