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The measurement of velocity gradients in laminar flow by homodyne light-scattering spectroscopy

Fuller, G. G. and Rallison, J. M. and Schmidt, R. L. and Leal, L. G. (1980) The measurement of velocity gradients in laminar flow by homodyne light-scattering spectroscopy. Journal of Fluid Mechanics, 100 (3). pp. 555-575. ISSN 0022-1120. http://resolver.caltech.edu/CaltechAUTHORS:20120719-090211057

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Abstract

A technique for measuring velocity gradients in laminar flows by homodyne light scattering is presented. A theory which describes the light-scattering spectrum is derived that includes the effects of different types of linear flow fields, particle diffusion and the intensity profile in the scattering volume. The conditions which must be satisfied in order that the theory describe the experimental situation are outlined and complementary experiments are performed which both verify the theory and apply the technique. Verification is provided using the flow in a Couette device, and the flow due to single rotating cylinder in a large bath of fluid. The technique is then applied to measure the spatial variation of the shear rate in a four-roll mill.


Item Type:Article
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http://dx.doi.org/10.1017/S0022112080001280DOIUNSPECIFIED
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=375517PublisherUNSPECIFIED
Additional Information:© 1980 Cambridge University Press. Received 5 March 1979 and in revised form 12 March 1980. Published Online April 19 2006. This work was supported by a grant from the Office of Naval Research.
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Office of Naval Research (ONR)UNSPECIFIED
Record Number:CaltechAUTHORS:20120719-090211057
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120719-090211057
Official Citation: G. G. Fuller, J. M. Rallison, R. L. Schmidt and L. G. Leal (1980). The measurement of velocity gradients in laminar flow by homodyne light-scattering spectroscopy. Journal of Fluid Mechanics, 100 , pp 555-575 doi:10.1017/S0022112080001280
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32573
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:19 Jul 2012 16:51
Last Modified:26 Dec 2012 15:37

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