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高温材料处理:国际期刊
SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN 打印: 1093-3611
ISSN 在线: 1940-4360

高温材料处理:国际期刊

DOI: 10.1615/HighTempMatProc.v9.i2.30
pages 211-226

Fast modelling of plasma jet and particle behaviours in spray conditions

Guy Delluc
Laboratoire Sciences des Precedes Ceramiques et Traitements de Surfaces UMR CNRS 6638, 123 avenue Albert Thomas 87060 Limoges Cedex
Helene Ageorges
University of Angers, LETP, 2 Boulevard Lavoisier, 49045 Angers Cedex, France
Bernard Pateyron
Laboratoire SPCTS UMR CNRS 7315, ENSCI, Centre Europeen de la Ceramique, Limoges, France
Pierre Fauchais
Laboratoire Sciences des Procedes Ceramiques et de Traitements de Surface UMR CNRS 6638 University of Limoges 123 avenue Albert Thomas, 87060 LIMOGES - France

ABSTRACT

This paper presents a simplified code allowing to find in a few minutes the trends of the d.c. plasma spray process, at least for a single particle in flight. It is based on a parabolic two dimension (2D) flow for the plasma jet and a three dimension (3D) calculation for the heat and momentum transfer to a single particle. It neglects the carrier gas flow rate- plasma flow interaction but the obtained trends are in good agreement with those obtained with 3D sophisticated codes. However results depend strongly on the turbulence model, the plasma effect corrections chosen for the heat and momentum transfer. Thus, as with 3D codes, the model has to be backed by experiments. It can be used to train operators and let them “see” almost immediately the effects of the different macroscopic spray parameters. The code and the plasma properties used can be freely downloaded.


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