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Penetration dynamics of solid particles into liquids high-speed experimental results and modelling
University of Miskolc, Hungary.
University of Miskolc, Hungary.
Royal Institute of Technology, Sweden.
Kyushu Institute of Technology, Japan.
2005 (English)In: Materials Science Forum, ISSN 0255-5476, Vol. 473-474, 429-434 p.Article in journal (Refereed) Published
Abstract [en]

Penetration of model solid particles (polymer, teflon, nylon, alumina) into transparent model liquids (distilled water and aqueous solutions of KI) were recorded by a high speed (500 frames per second) camera, while the particles were dropped from different heights vertically on the still surface of the liquids. In all cases a cavity has been found to form behind the solid particle, penetrating into the liquid. For each particle/liquid combination the critical dropping height has been measured, above which the particle was able to penetrate into the bulk liquid. Based on this, the critical impact particle velocity, and also the critical Weber number of penetration have been established. The critical Weber number of penetration was modelled as a function of the contact angle, particle size and the ratio of the density of solid particles to the density of the liquid.

Place, publisher, year, edition, pages
2005. Vol. 473-474, 429-434 p.
Keyword [en]
contact angle (CA), liquids, penetration, solid particles, weber number
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hj:diva-18887DOI: 10.4028/www.scientific.net/MSF.473-474.429OAI: oai:DiVA.org:hj-18887DiVA: diva2:539229
Available from: 2012-07-03 Created: 2012-07-03 Last updated: 2014-03-21Bibliographically approved

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