Viscous entrainment from a nozzle: singular liquid spouts |
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Authors: | Zhang Wendy W |
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Affiliation: | The Physics Department & James Franck Institute, University of Chicago, Chicago, IL 60637, USA. |
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Abstract: | We analyze a long-wavelength model of viscous entrainment from a nozzle and show that, when appropriate large-scale boundary conditions are imposed, the entrainment transition can become continuous. As the entrainment threshold is approached from above, the entrained steady-state spout becomes vanishingly thin compared to the nozzle radius and takes the form of a thin tendril emerging from a base profile whose tip is perfectly conical. |
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