The separation of viscous jets
- 1 January 1985
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 28 (1) , 23-25
- https://doi.org/10.1063/1.865185
Abstract
A viscous jet is not usually observed to separate from a sharp edge in the manner expected theoretically. In the present paper the separation of a creeping jet emerging from a tube with a rounded exit is considered. As a separation criterion, in the absence of surface tension, we propose that the traction normal to the nozzle surface drops to zero at the separation point. Boundary‐element calculations then show a behavior that agrees with experimental data and with previous finite‐element computations. They also permit the Michael condition to be observed at separation, so that the discrepancy between finite‐element calculations and theory is removed.Keywords
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