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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)

DISRUPTION IN LIQUID DROP COLLISIONS

A. Menchaca-Rocha
Universidad Nacional Autonoma de Mexico ,Mexico

F. Huidobro
Universidad Nacional Autonoma de Mexico, Mexico

K. Michaelian
Universidad Nacional Autonoma de Mexico, Mexico

V. Rodriguez
Universidad Nacional Autonoma de Mexico, Mexico

Abstract

The size and multiplicity distribution of residues from collisions between pairs of 1g mercury drops have been measured as a function of impact parameter b and relative velocity Vr, in the 0.3m/sVr ≤ 0.9m/s range. At high Vr values a transition between a narrow mass distribution for large b's, and a wide mass distribution for small b's, is observed. The multiplicity spectra show a broad distribution having a mean value of four, two large and two tiny drops. The results are discussed in terms of instabilities of the coalesced system associated to collective (rotational and vibrational) surface modes.