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Numerical Modelling of a Cutting Arc Torch
(Jan Awrejcewicz. INTECH, 2014-02-14)
Plasma cutting is a process of metal cutting at atmospheric pressure by an arc plasma jet,
where a transferred arc is generated between a cathode and a work-piece (the metal to be
cut) acting as the anode . Small nozzle ...
On the use of the Prandtl mixing length model in the cutting torch modeling.
(2011-05-25)
The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient ...
Numerical modeling of the gas breakdown development in the space–charge layer inside the nozzle of a transferred arc torch
(2012)
Double–arcing is a phenomenon that occurs when a transferred arc, flowing inside an
electrically insulated nozzle, breaks into two separate arcs: one that connects the cathode with
the nozzle, and another that connects ...
Interpretation of Voltage Measurements in Cutting Torches.
(2015)
Anode-cathode and nozzle-cathode voltages, plenum pressure and gas mass flow measurements in a
low current (30 A) cutting torch, operated with oxygen gas, are used as inputs for an electrical model coupled
to a simplified ...