Effect of wall effusivity on termally induced secondary atomisation of single drop impacting onto a tilted surface

G. E. Cossali, M. Marengo, M. Santini, S. Fest

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    The paper reports an experimental investigation on the effects of wall effusivity and impacting angle on secondary atomisation of millimetric water drop impacting onto heated surfaces. Two materials (aluminium alloy and steel) with a large difference in effusivity were used while maintaining the same surface roughness. Impact angles between 90° (normal impact) and 6° were investigated for two wall temperatures representing two boiling regimes (bubble and film boiling). Impact morphology was observed by a high resolution camera and secondary drop size was measured by Image Analysis and Phase Doppler Anemometry.

    Original languageEnglish
    Publication statusPublished - 1 Dec 2006
    Event10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006 - Kyoto, Japan
    Duration: 27 Aug 20061 Sept 2006

    Conference

    Conference10th International Conference on Liquid Atomization and Spray Systems, ICLASS 2006
    Country/TerritoryJapan
    CityKyoto
    Period27/08/061/09/06

    Keywords

    • Boiling
    • Drop impact
    • Effusivity
    • Secondary atomization

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