Abstract

In unstable airflows, it is found that often the seed particles used to make laser Doppler anemometry measurements of fluid velocities follow complicated trajectories in even very small fringe volumes. A technique to obtain maximum particle-trajectory information from the scattered light signal is described. The use of this technique to measure fluid-motion characteristics in regions of unstable flow down to 10-μm scale inhomogeneities is described.

© 1982 Optical Society of America

Rapid digitized storage of seed-particle-track images in microscopically inhomogeneous flows

L. Rimai and K. A. Marko
Opt. Lett. 7(7) 328-330 (1982)

Laser-Doppler measurement of crosswind velocity

F. Durst, B. M. Howe, and G. Richter
Appl. Opt. 21(14) 2596-2607 (1982)

Laser Doppler anemometer measurements using nonorthogonal velocity components: error estimates

Kenneth L. Orloff and Philip K. Snyder
Appl. Opt. 21(2) 339-344 (1982)

Trajectory and velocity measurement of a particle in spray by digital holography

Qieni Lü, Yiliang Chen, Rui Yuan, Baozhen Ge, Yan Gao, and Yimo Zhang
Appl. Opt. 48(36) 7000-7007 (2009)

White-light speckle method of measurement of flow velocity distribution

E. Bernabeu, J. C. Amaré, and M. P. Arroyo
Appl. Opt. 21(14) 2583-2586 (1982)