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Detection of conductivity fluctuations in a turbulent flow field

Published online by Cambridge University Press:  28 March 2006

C. H. Gibson  and
W. H. Schwarz
C. H. Gibson
Affiliation:
Department of Chemical Engineering, Stanford University, Stanford, California Present address : Chemical Technology Department, Osmania University, Hyderabad (A.P.), India.
W. H. Schwarz
Affiliation:
Department of Chemical Engineering, Stanford University, Stanford, California
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Abstract

A technique has been developed to detect very small amplitude fluctuations of concentration or temperature in aqueous electrolytic solutions. A platinized single-electrode conductivity probe is made one arm of an A.C. Wheatstone bridge, whose unbalance is then proportional to the incremental change of conductivity at the probe tip. A discussion of the sensitivity and spatial resolution of the probe and circuitry is given. This technique should have useful applications in oceanographic measurements of salinity or temperature, measurements of statistical parameters useful in the description of diffusion-controlled reactions in liquid-phase chemical reactors, and also the pure mixing of ionic materials and temperature.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 16 , Issue 3 , July 1963 , pp. 357 - 364
Copyright
© 1963 Cambridge University Press

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References

Cairns, E. J. & Prausnitz, J. M. 1960a A.I.Ch.E. Journal 6, 400.
Cairns, E. J. & Prausnitz, J. M. 1960b A.I.Ch.E. Journal 6, 554.
Gibson, C. H. & Schwarz, W. H. 1963 J. Fluid Mech. 16, 365.
Glasstone, S. 1942 An Introduction to Electrochemistry. New York: D. Van Nostrand Co., Inc.
Jones, Grinnell et al. J.A.Ch. Soc. 50, 1049 (1928); 51, 2407 (1929); 53, 411 (1931); 53, 1207 (1931); 55, 1780 (1933); 57, 272 (1935); 57, 280 (1935); 59, 731 (1937).
Lamb, D. E., Manning, F. S. & Wilhelm, R. H. 1960 A.I.Ch.E. Journal 6, 682.
Manning, F. S. 1959 Ph.D. Thesis (Chemical Engineering) Princeton University.
Prausnitz, J. M. & Wilhelm, R. H. 1956 Rev. Sci. Instrum. 27, 941.
Priestley, M. & Gibson, C. H. 1962 Estimation of power spectra by a Wave Analyzer. Stanford University Appl. Math. and Stat. Lab. Tech. Rep. no. 5.Google Scholar