Break-up Phenomena of Liquid Drops Impacting on Immiscible Liquids.

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  • Lee Kae-Young
    Kwangyang Iron and Steel Research Laboratories, POSCO
  • Lee Hae-Geon
    Department of Materials Science and Metallurgical Engineering, Pohang University of Science and Technology
  • Hayes Peter C.
    Department of Mining, Minerals and Materials Engineering, The University of Queensland

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Abstract

Experimental studies investigating the break-up of liquid drops impacting on immiscible target liquids have been undertaken. High speed photography has been used to elucidate the mechanisms of drop break-up. Three distinct regimes were identified, i.e., a regime in which drops never break, a regime in which drops show a variable behaviour from no break-up to break-up into multiple droplets, and a regime in which drops always break. The sequence of events that occur on impact can be divided into six stages, namely, impact, spread, contraction, rebound, recovery and penetration. Three different break-up mechanisms were identified, namely, the break-up at the maximum spread of the drop on the cavity floor (perimeter break-up), the break-up at the maximum rebound of the drop (rebounding-jet break-up) and the break-up during penetration through the cavity floor (cavity-pulled break-up).

Journal

  • ISIJ International

    ISIJ International 38 (11), 1233-1241, 1998

    The Iron and Steel Institute of Japan

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