Application of forced Rayleigh scattering to hydrodynamic measurements
Abstract
The forced Rayleigh scattering (FRS) technique was used to study laminar and turbulent flows. The optical Fourier transform of a transient grating created in a flowing liquid was recorded. 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 are provided for a plane Poiseuille flow.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- August 1986
- DOI:
- 10.1109/JQE.1986.1073134
- Bibcode:
- 1986IJQE...22.1461C
- Keywords:
-
- Flow Measurement;
- Forward Scattering;
- Hydrodynamics;
- Laser Applications;
- Rayleigh Scattering;
- Flow Velocity;
- Gratings;
- Laminar Flow;
- Turbulent Diffusion;
- Two Dimensional Flow;
- Yag Lasers;
- Instrumentation and Photography