图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
高温材料处理:国际期刊
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN 打印: 1093-3611
ISSN 在线: 1940-4360

高温材料处理:国际期刊

DOI: 10.1615/HighTempMatProc.v11.i2.110
pages 283-296

3-D MODELING OF ICP TORCHES

Vittorio Colombo
Università degli Studi di Bologna, Dipartimento di Ingegneria delle Costruzioni Meccaniche, Nucleari, Aeronautiche e di Metallurgia (D.I.E.M.) and C.I.R.A.M., Via Saragozza 8, 40123 Bologna, Italy
Emanuele Ghedini
Università degli Studi di Bologna, Dipartimento di Ingegneria delle Costruzioni Meccaniche, Nucleari, Aeronautiche e di Metallurgia (D.I.E.M.) and C.I.R.A.M., Via Saragozza 8, 40123 Bologna

ABSTRACT

A three-dimensional model for the simulation of inductively coupled plasma torches (ICPTs) working at atmospheric pressure has been developed, using customized CFD commercial code FLUENT© . The helicoidal coil is taken into account in its actual 3-D shape, showing its effects on the plasma discharge for various geometric, electric and operating conditions. The electromagnetic equations are solved in their vector potential form, while the steady flow and energy equations are solved for optically thin plasmas under the assumptions of LTE and laminar flow; some of the results that will be presented have been obtained by means of an improved turbulent version of the 3-D model. Simulations are performed over a network cluster of double processor calculators in order to use the full capabilities of the 3-D modelling to describe the gas injection section of an industrial TEKNA PL-35 plasma torch without geometry simplifications, in order to perform a more realistic simulation of the inlet region of the discharge. In order to evaluate the importance of various 3-D effects on calculated plasma temperature and flow fields, our new results have been tested against the ones obtainable from 2-D models and from improved 2-D model that includes 3-D coil effects. Three-dimensional results concerning different operating conditions are presented, together with simulations of the trajectory and heating history of powders injected in the torch through a carrier gas.


Articles with similar content:

2-D AND 3-D FLUIDYNAMIC AND PLASMA CHARACTERIZATION OF DC TRANSFERRED ARC PLASMA TORCHES FOR METAL CUTTING
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.10, 2006, issue 3
S. Dallavalle, G. Masini, D. Russo, Vittorio Colombo, M. Vancini, Emanuele Ghedini
THREE-DIMENSIONAL MODELING OF MIXING OF STEAM PLASMA JET WITH NITROGEN IN THERMAL PLASMA REACTOR
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.14, 2010, issue 1-2
Milan Hrabovsky, I. Hirka
NUMERICAL STUDY OF HEATING THE GAS IN AN ATMOSPHERIC PRESSURE COLD PLASMA GENERATOR
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.18, 2014, issue 3
Vladimir S. Bekasov, Anatoly A. Kudryavtsev, Gennady Kirsanov, Almaz I. Saifutdinov, Sergey S. Sysoev, Stepan I. Eliseev
3-D NUMERICAL MODELING OF AN ANODIC METAL BATH HEATED WITH A TRANSFERRED ARC
Progress in Plasma Processing of Materials, 1999, Vol.1, 1999, issue
J. B. Guillot, Clarisse Delalondre, A. Douce, A. Bouvier
NO PRODUCTION IN A GLIDING ARC DISCHARGE
Progress in Plasma Processing of Materials, 1997, Vol.1, 1997, issue
F. Richard, J. Chapelle, Stephane Pellerin, V. Dalaine, J.-M. Cormier