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Atomization and Sprays
Facteur d'impact: 1.262 Facteur d'impact sur 5 ans: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimer: 1044-5110
ISSN En ligne: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.v18.i3.10
pages 191-241

INTERACTIONS OF DECELERATING DROPS MOVING IN TANDEM

Niru Kumari
School of Mechanical Engineering, Maurice J. Zucrow Laboratories, Purdue University, West Lafayette, IN 47907-2014
John P. Abraham
School of Mechanical Engineering, Purdue University, West Lafayette, Indiana, USA; The University of St. Thomas, 2115 Summit Avenue, St. Paul, 55105-1079, USA

RÉSUMÉ

Binary and ternary systems of decelerating drops moving in tandem are numerically studied. The influence of the separation distance between drops, drop size ratio, individual Weber numbers, and Ohnesorge numbers on the transient deformation and breakup of the drops are discussed. Drag coefficients for the drops are also reported. As a point of reference, results for single drops are presented, and the differences between the behavior of a single drop and binary and ternary drops are discussed. It is shown that in binary drops, the trailing drop decelerates slower than the leading one and breaks up slower. Both drops decelerate slower than the isolated drop. In the case of ternary drops, the three drops decelerate slower than the isolated one. The leading drop breaks up fastest followed by the middle one.


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