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Charged Drop Dynamics Experiment Using an Electrostatic-Acoustic Hybrid System

Published online by Cambridge University Press:  26 February 2011

W. K. Rhim ,
S. K. Chung ,
E. H. Trinh  and
D. D. Elleman
W. K. Rhim
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
S. K. Chung
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
E. H. Trinh
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
D. D. Elleman
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109
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Abstract

In this paper, we describe the design and the performance of an electrostatic-acoustic hybrid system and its application to a charge drop rotation experiment. This system can levitate a charged drop electrostatically and induce drop rotation or oscillation by imposing an acoustic torque or an oscillating acoustic pressure. Using this system, the equilibrium shapes and stability of a rotating charged drop were experimentally investigated. A 3 mm size water drop was rotated as a rigid body and its gyrostatic equilibrium shapes were observed. Families of axisymmetric shapes, two-lobed shapes, and eventual fissioning have been observed. With the assumption of “effective surface tension” in which the surface charge simply modified the surface tension of neutral liquid, the results agree exceptionally well with the Brown and Scriven's prediction for uncharged drops.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 87: Symposium O – Materials Processing in the Reduced Gravity Environment of Space , 1986 , 329
Copyright
Copyright © Materials Research Society 1987

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References

1. Pruppacher, H. R. and Beard, K. V., Quart. J. Roy. Meteor. Soc., 96, 247 (1970)Google Scholar
2. Trinh, E. H., Rev. Sci. Inst. 56, 2059–2065 (1985)Google Scholar
3. Rhim, W. K., Chung, S. K., Trinh, E., Hyson, M. T., and Elleman, D. D., IEEE-IAS Conf. Record, 1986 Annual Meeting, 1338–1341Google Scholar
4. Rayleigh, Lord, Phil. Mag. 28, 161 (1914)Google Scholar
5. Chandrasekhar, S., Proc. Roy. Soc. London, A286, 1–26 (1965)Google Scholar
6. Brown, R. A. and Scriven, L. E., Proc. Roy. Soc. London, A371, 331–357 (1980)Google Scholar
7. Plateau, A. F., Annual Report of the Board of Regents of Smithsonian Institution, 270–285 (1863)Google Scholar
8. Tagg, R., Cammack, L., Croonquist, A., and Wang, T. G., Jet Propulsion Laboratory Report No. 900–954, (1979)Google Scholar
9. Rhim, W. K., Collender, M., Hyson, M. T., Simms, W. T., and Elleman, D. D., Rev. Sci. Inst. 56, 307–317 (1985)Google Scholar
10. Annamalai, P., Trinh, E. and Wang, T. G., J. Fluid Mech. 158, 317–327 (1985)Google Scholar
11. Busse, F. H. and Wang, T. G., J. Acoust. Soc. Am. 69,1634–1639 (1981)Google Scholar
12. Rayleigh, Lord, Phil. Mag. 14, 184–186 (1882)Google Scholar
13. Wang, T. G., Trinh, E. H., Croonquist, A. P., and Elleman, D. D., Phys. Rev. Lett., 56, 452–455 (1986)Google Scholar
14. Gifford, W. A., Ph. D. Thesis, Univ. of Minnesota (1979)Google Scholar