ISSN 2594-5327
72nd ABM Annual Congress — vol. 72, num.72 (2017)
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A 2D mathematical model was developed for the plasma arc welding process. Computational simulations based on mass and momentum conservation equations as well as Maxwell equations were performed by using the commercial software PHOENICS. The model predicts the electric characteristics of the arc column, flow patterns, temperature contours and electrical potential, by varying the composition of the cover gas, in this case, argon and nitrogen. It was found that an arc of nitrogen with respect to one of argon generates more intense jets, greater voltages, and lower temperatures in the arc column for welding arcs current of 150 A and 10 mm arc length.
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KeywordsElectric arc, heat transfer, fluid flow, mathematical modeling
KeywordsElectric arc, heat transfer, fluid flow, mathematical modeling
Como citar
Ramírez-Argáez, Marco A.;
Delgado-Alvarez, Alfredo;
Mendez, Patricio.
MATHEMATICAL MODELING OF ARGON AND NITROGEN PLASMA ARCS AT ATMOSPHERIC PRESSURE
,
p. 614-625.
In: 72nd ABM Annual Congress,
São Paulo,
2017.
ISSN: 2594-5327
, DOI 10.5151/1516-392X-30276
