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Experimental Studies in Fluid Mechanics and Materials Science Using Acoustic Levitation

Published online by Cambridge University Press:  26 February 2011

E. H. Trinh
Affiliation:
Jet Propulsion Laboratory California Institute of Technology
J. Robey
Affiliation:
Jet Propulsion Laboratory California Institute of Technology
A. Arce
Affiliation:
Jet Propulsion Laboratory California Institute of Technology
M. Gaspar
Affiliation:
Jet Propulsion Laboratory California Institute of Technology
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Abstract

Ground-based and short-duration low gravity experiments have been carried out with the use of ultrasonic levitators to study the dynamics of freely suspended liquid drops under the influence of predominantly capillary and acoustic radiation forces. Some of the effects of the levitating field on the shape as well as the fluid flow fields within the drop have been determined. The development and refinement of measurement techniques using levitated drops with size on the order of 2mm in diameter have yielded methods having direct application to experiments in microgravity. In addition, containerless melting, undercooling, and freezing of organic materials as well as low melting metals have provided experimental data and observation on the application of acoustic positioning techniques to materials studies.

Type
Research Article
Copyright
Copyright © Materials Research Society 1987

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