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IRSN, Institut de radioprotection et de sûreté nucléaire

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Diffusion Flames Upwardly Propagating over PMMA: Theory, Experiment and Numerical Modeling

8th Symposium IAFSS, Pekin, Chine, 18-23 september 2005

J-L CONSALVI(1), B. PORTERIE(1), M. COUTIN(2), L. AUDOUIN(2), C. CASSELMAN(2), A. RANGWALA(3), S.G. BUCKLEY(3) et J.L. TORERO(4).

Document type > *Congrès/colloque

Keywords > safety, diffusion, fire, flame, mass transfer

Research Unit > IRSN/DPAM/SEREA/LEF

Authors > AUDOUIN Laurent, CASSELMAN Chantal, COUTIN Mickaël

Publication Date > 18/09/2005

Summary

A numerical model and experiments over PMMA are used to evaluate the main assumptions used in the theoretical description of a diffusion flame established in a natural boundary layer. Flow characteristics (2-D Boundary Layer) and surface thermal balance are identified as the critical assumptions to be evaluated. Comparison of experiments, numerical results, and theoretical model serve to validate the assumptions leading to the definition of a mass transfer number but establish the need to model all three-dimensional features of the flow.

(1) : Polytech’Marseille/DME, UMR/CNRS 6595, 5 rue E. Fermi, 13453 Marseille Cedex 13, France
(2) : IRSN, DPAM, Cadarache, 13108 Saint Paul lez Durance, France
(3) : Department of Mechanical and Aerospace Engineering, University of California, San Diego, La Jolla, CA 92093-0411, USA
(4) : BRE/Edinburgh Centre for Fire Research, The University of Edinburgh, Edinburgh, EH9 3JL, UK


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