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Proceedings Paper

Numerical simulation of free jet formation and breakdown by the volume-of-fluid method
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Paper Abstract

This paper deals with the formation and breakdown of liquid jets from different nozzle designs with square cross section. The jet formation is quantitatively examined in terms of a scaled viscosity and pressure transient for a convergent nozzle design. The study also shows, that a divergent nozzle outlet should be avoided, because it may cause asymmetric disturbances on the jet. Two different mechanisms of jet breakdown occur in dependence on the nozzle geometry. Curves of the critical Weber number vs. Reynolds number are calculated.

Paper Details

Date Published: 17 January 2003
PDF: 10 pages
Proc. SPIE 4982, Microfluidics, BioMEMS, and Medical Microsystems, (17 January 2003); doi: 10.1117/12.478139
Show Author Affiliations
Frank Goldschmidtboeing, Albert-Ludwigs-Univ. Freiburg (Germany)
Peter Woias, Albert-Ludwigs-Univ. Freiburg (Germany)

Published in SPIE Proceedings Vol. 4982:
Microfluidics, BioMEMS, and Medical Microsystems
Holger Becker; Peter Woias, Editor(s)

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