Title :
Application of forced Rayleigh scattering to hydrodynamic measurements
Author :
Charmet, J.C. ; Cloitre, M. ; Fermigier, M. ; Guyon, E. ; Jenffer, P. ; Limat, L. ; Petit, L.
Author_Institution :
Laboratoire d́Hydrodynamique et Mécanique Physique, Paris, France
fDate :
8/1/1986 12:00:00 AM
Abstract :
We applied the forced Rayleigh scattering technique to study laminar and turbulent flows. We recorded the optical Fourier transform of a transient grating created in a flowing liquid. Depending on the type of detection used, FRS provides either a direct measurement of velocity gradients or the determination of an effective turbulent diffusivity. Experimental results in a plane Poiseuille flow are given.
Keywords :
Flow measurement; Optical measurements; Optical scattering; Distortion measurement; Fluctuations; Force measurement; Gratings; Hydrodynamics; Image motion analysis; Laser beams; Optical distortion; Rayleigh scattering; Velocity measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1986.1073134
