The Kaye Effect: new insights and modelling approaches

Steven Lind

Department of Mechanical, Aerospace & Civil Engineering, University of Manchester, UK

Abstract

The Kaye effect is a phenomenon whereby a jet of non-Newtonian fluid poured onto a surface appears to leap on impact, rather than stagnate or coil as expected. Since it was first described in 1963, several researchers have attempted to explain the mechanism by which the phenomenon occurs, although to date no complete explanation for the behaviour exists. Current evidence points towards the existence of an air layer between the jet and the heap which enables slip. In this talk we present some recent experimental, modelling and numerical method developments that aim to increase our understanding of the Kaye effect and give insight into a problem that has puzzled rheologists for over half a century.

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