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Linear analysis of three-dimensional instability of non-Newtonian liquid jets

Published online by Cambridge University Press:  19 July 2006

ZHIHAO LIU  and
ZHENGBAI LIU
ZHIHAO LIU
Affiliation:
California Institute of Technology, MSC 581, 1200 E. California Blvd., Pasadena, CA 91125, USA
ZHENGBAI LIU
Affiliation:
International Truck and Engine Corporation, 10400 W. North Ave., Melrose Park, IL 60160, USA
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Abstract

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The instability behaviour of non-Newtonian liquid jets moving in an inviscid gaseous environment is investigated theoretically for three-dimensional disturbances. The corresponding dispersion relation between the wave growth rate and the wavenumber is derived. Results for axisymmetrical non-Newtonian jets, the Newtonian jets, and the inviscid jets are recovered, and it is shown that two-dimensional disturbances are the most dangerous for the considered set of parameters.

Type
Papers
Information
Journal of Fluid Mechanics , Volume 559 , 25 July 2006 , pp. 451 - 459
Copyright
© 2006 Cambridge University Press