High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) An International Journal

ISSN for PRINT: 1093-3611

For Online Access

Best Paper Award Selection - Editorial Board Site

2002, Volume6

Issue 2

147 pages

Issue price - $144.00

M. Announ
Institut de science et de Genie des Materiaux et Precedes B.P.5 Odeillo 66125 Font - Romeu, France

J. M. Badie
Institut de science et de Genie des Materiaux et Precedes B.P.5 Odeillo 66125 Font - Romeu, France

B. Granier
Institut de science et de Genie des Materiaux et Procedes B.P.5 Odeillo 66125 Font - Romeu, France

P. Snabre
Institut de science et de Genie des Materiaux et Precedes B.P.5 Odeillo 66125 Font - Romeu, France

Stainless steel spheres are maintained in stable aerodynamic levitation in high temperature argon plasma jets. The convective heat transfer coefficient is estimated from gas and sphere equilibrium temperature at the flow stagnation point or from the analysis of the transient temperature for the sphere when abruptly immersed in the plasma jet. Heat transfer coefficient tends to values compatible with Froessling correlation for the highest levitation heights and the particle rotation is shown to control the heat transfer rate in a non uniform plasma flow.

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