Benchmark for fluid flow in weld pool simulation : two-dimensional transient computational models for arc welding

Pascal Girard (1) , Michel Bellet (2) , Georges Caillibotte (3) , M. Carin (4) , Stephane Gounand (5) , François Mathey (6) , Marc Medale (7)

1 LTA - Laboratoire Technologie d'Assemblage
2 CEMEF - Centre de Mise en Forme des Matériaux
3 Air Liquide, Centre de Recherche Claude-Delorme, Paris-Saclay, France.
4 UBS - Université de Bretagne Sud
5 SFME - Service Fluide numériques, Modélisation et Etudes
6 Fluent
7 IUSTI - Institut universitaire des systèmes thermiques industriels

A numerical benchmark for the weld pool simulation is presented for a case representative of a spot GTA welding. It has been treated by five institutes or industrial companies with five computational fluid dynamics codes (CFD). Comparative results are presented for a transient spot welding simulation on a 304L-Like material. Four observables (temperature and velocity) are studied on a transient duration of 5 s. A good agreement is shown between all CFD codes. Relevant observables allowing to discriminate models are exhibited. Remaining discrepancies are discussed.

Mots clés: Welding; Numerical Modeling; Heat and Fluid Flow; Benchmark study; Transient Analysis; 2D; Weld pool

Domaines: Mécanique des fluides [physics.class-ph]

Pascal Girard, Michel Bellet, Georges Caillibotte, M. Carin, Stephane Gounand, et al.. Benchmark for fluid flow in weld pool simulation : two-dimensional transient computational models for arc welding. 2005. ⟨hal-04108230⟩