Modelling the fluid dynamics and coupled phenomena in arc weld pools
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Hughes, Michael, Pericleous, Koulis 
ORCID: https://orcid.org/0000-0002-7426-9999 and Strusevitch, Nadia
(2002)
Modelling the fluid dynamics and coupled phenomena in arc weld pools.
In: Mathematical Modelling of Weld Phenomena.
Materials Modelling, 6
.
Maney Publishing for the Institute of Materials, Minerals and Mining, London, England, UK, pp. 63-81.
ISBN 9781902653563
Abstract
A 3D model of melt pool created by a moving arc type heat sources has been developed. The model solves the equations of turbulent fluid flow, heat transfer and electromagnetic field to demonstrate the flow behaviour phase-change in the pool. The coupled effects of buoyancy, capillary (Marangoni) and electromagnetic (Lorentz) forces are included within an unstructured finite volume mesh environment. The movement of the welding arc along the workpiece is accomplished via a moving co-ordinator system. Additionally a method enabling movement of the weld pool surface by fluid convection is presented whereby the mesh in the liquid region is allowed to move through a free surface. The surface grid lines move to restore equilibrium at the end of each computational time step and interior grid points then adjust following the solution of a Laplace equation.
| Item Type: | Conference Proceedings |
|---|---|
| Title of Proceedings: | Mathematical Modelling of Weld Phenomena |
| Additional Information: | [1] This paper was first presented at the Sixth International Seminar on the Numerical Analysis of Weldability, held in October 2001 in Graz, Austria. [2] This paper is published within Section I. Melt Pool, Phenomena, Chapter 4. |
| Uncontrolled Keywords: | welding arc, turbulent fluid flow, heat transfer, electromagnetic field, flow behaviour |
| Subjects: | Q Science > QA Mathematics > QA76 Computer software T Technology > TJ Mechanical engineering and machinery |
| Pre-2014 Departments: | School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Mechanics & Reliability Group School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group School of Computing & Mathematical Sciences > Department of Computer Systems Technology School of Computing & Mathematical Sciences > Department of Mathematical Sciences |
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| Last Modified: | 02 Mar 2019 15:50 |
| URI: | http://gala.gre.ac.uk/id/eprint/552 |
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