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