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Applied Optics

Applied Optics


  • Vol. 22, Iss. 2 — Jan. 15, 1983
  • pp: 333–338

Determination of velocity gradients with scattered light cross-correlation measurements

C. Keveloh and W. Staude  »View Author Affiliations

Applied Optics, Vol. 22, Issue 2, pp. 333-338 (1983)

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The space–time correlation function of the intensity of light scattered off a medium with a constant velocity gradient has been calculated. One property, in particular, of this correlation function, which may be referred to as speckle motion or speckle flow, enables an experimental determination of the tensor components of the velocity gradient. Influence of Brownian motion and finite scattering volume are estimated. Experimental results, obtained at a tube flow, are shown to be in accordance with the theory.

© 1983 Optical Society of America

Original Manuscript: April 29, 1982
Published: January 15, 1983

C. Keveloh and W. Staude, "Determination of velocity gradients with scattered light cross-correlation measurements," Appl. Opt. 22, 333-338 (1983)

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  1. G. G. Fuller, J. M. Rallison, R. L. Schmidt, L. G. Leal, J. Fluid Mech. 100, 555 (1980). [CrossRef]
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