A non-perturbative anemometric and flow visualization technique

M. Fermigier , P. Jenffer , J.C. Charmet , E. Guyon

We present a new visualization technique of an hydrodynamic flow using a thermal grid, « written » in the liquid by means of a pulsed laser, and whose image is subsequently formed, using standard optics, by illumination by a continuous laser. The experiment gives access to a new Doppler-anemometric technique which does not involve the presence of particles in the fluid and to an instantaneous image of a finite volume of the flow.

Mots clés: anemometers; flow visualisation; flow visualization technique; hydrodynamic flow; thermal grid; Doppler anemometric technique; nonperturbative technique

Domaines: Articles anciens

M. Fermigier, P. Jenffer, J.C. Charmet, E. Guyon. A non-perturbative anemometric and flow visualization technique. Journal de Physique Lettres, 1980, 41 (21), pp.519-521. ⟨10.1051/jphyslet:019800041021051900⟩. ⟨jpa-00231836⟩