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Numerical simulation of superoscillations of a Triton-bearing drop in microgravity

Published online by Cambridge University Press:  25 July 1998

XIAOHUI CHEN ,
TAO SHI ,
YUREN TIAN ,
JOESEPH JANKOVSKY ,
R. GLYNN HOLT  and
ROBERT E. APFEL
XIAOHUI CHEN
Affiliation:
Department of Mechanical Engineering, Yale University, New Haven, CT 06520-8286, USA
TAO SHI
Affiliation:
Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
YUREN TIAN
Affiliation:
Department of Mechanical Engineering, Yale University, New Haven, CT 06520-8286, USA
JOESEPH JANKOVSKY
Affiliation:
Department of Mechanical Engineering, Yale University, New Haven, CT 06520-8286, USA
R. GLYNN HOLT
Affiliation:
Department of Aerospace and Mechanical Engineering, Boston University, Boston, MA 02215, USA
ROBERT E. APFEL
Affiliation:
Department of Mechanical Engineering, Yale University, New Haven, CT 06520-8286, USA
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Abstract

Large-amplitude nonlinear oscillations of an axially symmetric water drop of volume 7.33 cm3, initial aspect ratio 3.4, with surfactant Triton X-100 of 1.4×10−4 g ml−1 (1 CMC), in microgravity are compared with predictions of the boundary-integral method. The small shear viscosity of the bulk phase, as well as the surface dilatational viscosity and surface shear viscosity are considered. When a very specific set of material properties is assumed, numerical simulations of the drop oscillations are in good agreement with the experimental results of drop oscillations measured in space during the second United States Microgravity Laboratory, USML-2. The obtained surface viscosities are in rough agreement with literature values.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 367 , 25 July 1998 , pp. 205 - 220
Copyright
© 1998 Cambridge University Press

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