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Annals of the Assembly for International Heat Transfer Conference 13

ISBN 1-56700-225-0 / CD 1-56700-226-9

Volumes per year:

various

Year 2006

DOI: 10.1615/IHTC13.p26

APPLICATION OF NARROW BAND BASED WEIGHTED SUM OF GRAY GASES MODEL WITH A GRAY GAS REGROUPING FOR OPPOSED FLOW DIFFUSION/PARTIALLY PREMIXED FLAMES

W. Park
Korea Railroad Research Institute, Korea

T. Kim
Chung-Ang University, Korea

ABSTRACT

WSGGM with gray gas regrouping is successfully applied to study the structure of opposed flow flames including the effect of radiative transfer. The statistical narrow band model is used to obtain the benchmark solutions. Results obtained by using the optically thin model are shown to overestimate the emission and to predict the flame structures inadequately especially for optically thick and low stretch rate flames. Computed results by using the WSGGM with 10 gray gases and SNB model show reasonable agreements with each other, and the required computation times for the regrouped WSGGM are acceptable for engineering applications.