FLOW VISUALIZATION WITH A COLD MODEL FOR ICP TORCH DESIGN

Chazot, O.; van der Haegen, V.; Carbonaro, M.

Progress in Plasma Processing of Materials, 1999

ISBN Print: 1-56700-126-2

FLOW VISUALIZATION WITH A COLD MODEL FOR ICP TORCH DESIGN

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O. Chazot Von Karman Institute for Fluid Dynamics 72 Chaussée de Waterloo 1640 Rhode St Genèse, BELGIUM

V. van der Haegen Von Karman Institute for Fluid Dynamics 72 Chaussée de Waterloo 1640 Rhode St Genèse, BELGIUM

M. Carbonaro Von Karman Institute for Fluid Dynamics 72 Chaussée de Waterloo 1640 Rhode St Genèse, BELGIUM

Abstract

The design of an ICP torch is studied with a cold model and an original flow visualization technique. This allows to check with accuracy the geometry of the gas injection system, for different combinations of injection modes (simple jet, multi-jet, swirling) in Thermal Plasma Processes. Basic observations are made on the topology and the stability of the flow field in the torch.

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