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Atomization and Sprays

Journal of the International Institutes for Liquid Atomization and Spray Systems

ISSN for PRINT: 1045-5110

Institutional price:	$787.00
Issues per year:	8

Best Paper Award Selection - Editorial Board Site

1998, Volume8

98 pages

Issue price - $75.00

ON THE MODELING OF LIQUID SPRAYS IMPINGING ON SURFACES

Chr. Mundo
University of Erlangen-Nürnberg, Erlangen, Germany

M. Sommerfeld
Martin Luther Untversitat Halle-Wittenberg Institut fur Verfahrenstechnik, Halle (Saale), Germany

Cam Tropea
Chair of Fluid Mechanics and Aerodynamics (SLA), TU Darmstadt, Germany, Petersenstr. 30, D-64287 Darmstadt, Germany

ABSTRACT

The aim of the present investigations is the derivation and validation of a new droplet-wall impingement model based on detailed experimental investigations to calculate near-wall polydisperse spray flows. The derived model is based on the definition of the value K = √We√Re, which incorporates both the kinematic parameters of the impinging droplet relative to the wall and the fluid properties. To test the model against experiments, a rather simple spray flow configuration was chosen, in order to reveal clearly the advantages and disadvantages. Furthermore, droplet—wall impingement models introduced by Naber and Reitz [18] and by Wang and Watkins [34] were implemented into the code, and the results were compared to the new model.