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ICLASS 94<br>Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems

ISBN:
978-1-56700-019-1 (Print)
978-1-56700-445-5 (Online)

SIMILARITY AND ASYMPTOTIC SOLUTIONS FOR SPRAY EVAPORATION AND COALESCENCE IN A SHEAR-LAYER FLOW

David Katoshevski
Environmental Engineering Unit, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel

Yoram Tambour
Faculty of Aerospace Engineering, Technion—Israel Institute of Technology, Haifa 32000, Israel

Abstract

Simultaneous evaporation and coalescence of fuel droplets of a multisize spray suspended in one of the streams in a shear-layer flow are analyzed. Similarity and asymptotic solutions of the spray governing equations are discussed. New results are presented here for the effects of droplet coalescence on vapor production across the shear-layer, on the lateral distributions of droplet Sauter Mean Diameter, and on the evolution in droplet size histograms. The present results indicate that for relatively high coalescence rates, the lateral distribution of the droplet Sauter Mean Diameter across the shear-layer assumes an "S" shaped curve.