منابع مشابه
1 Arc Plasma Torch Modeling
Arc plasma torches are the primary components of various industrial thermal plasma processes involving plasma spraying, metal cutting and welding, thermal plasma CVD, metal melting and remelting, waste treatment and gas production. They are relatively simple devices whose operation implies intricate thermal, chemical, electrical, and fluid dynamics phenomena. Modeling may be used as a means to ...
متن کاملMultiscale Finite Element Modeling of Arc Dynamics in a DC Plasma Torch
The dynamics of the electric arc inside a direct current non-transferred arc plasma torch are simulated using a three-dimensional, transient, equilibrium model. The fluid and electromagnetic equations are solved numerically in a fully coupled approach by a multiscale finite element method. Simulations of a torch operating with argon and argon-hydrogen under different operating conditions are pr...
متن کامل2D Axisymmetric Coupled CFD-kinetics Modeling of a Nonthermal Arc Plasma Torch for Diesel Fuel Reforming
The present study is dedicated to the coupled CFD-kinetics 2D axisymmetric modeling of plasma-assisted diesel fuel reformer developed for two different applications: (i) onboard H2 production for fuel cell feeding and (ii) NOx trap regeneration. These cases correspond to very different reacting conditions. In the first case, diesel fuel reacts with air while in the second case it reacts with di...
متن کاملNon-equilibrium modeling of arc plasma torches
A two-temperature thermal non-equilibrium model is developed and applied to the threedimensional and time-dependent simulation of the flow inside a DC arc plasma torch. A detailed comparison of the results of the non-equilibrium model with those of an equilibrium model is presented. The fluid and electromagnetic equations in both models are approximated numerically in a fully-coupled approach b...
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ژورنال
عنوان ژورنال: Journal of Thermal Spray Technology
سال: 2009
ISSN: 1059-9630,1544-1016
DOI: 10.1007/s11666-009-9342-1