Viscous linear instability of a sheared liquid-gas interface - Effect of a velocity deficit near the interface |
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| Authors: | Thomas Otto Thomas Boeck Maurice Rossi |
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| Institution: | 1. Institute of Thermodynamics and Fluid Mechanics, Ilmenau University of Technology, P. O. Box 100565, 98684 Ilmenau;2. Institut Jean Le Rond d'Alembert, Universite Pierre et Marie Curie, 4 place Jussieu, 75252 Paris Cedex 05, France |
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| Abstract: | The initial state of liquid atomization by a fast gas stream is considered by viscous linear spatial stability analysis for parallel two-fluid flow. The unbounded basic velocity profile is characterized by different asymptotic velocities and a velocity deficit near the interface. We examine the influence of the velocity deficit on the spatial growth rates of two competing modes originating from the Kelvin-Helmholtz and viscosity contrast mechanisms. (© 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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