Abstract

An application of holographic interferometry to Rayleigh-Bénard flow is reported. A fluid seeded with fine alumina particles is illuminated with sheetlike light, and the light scattered from the plane is recorded in a hologram. The reconstructed images give 2-D full-field velocity information within the volume of moving liquid at any instant in time. The convective rolls are regular and oriented perpendicular to the long side of the cell. The vertical velocity distribution closely approximates a sinusoidal function of the horizontal distance and its maximum is nearly proportional to the half-power of the reduced temperature.

© 1982 Optical Society of America

Velocity measurements in a convective flow by holographic interferometry

Nieves Andrés, Pilar Arroyo, and Manuel Quintanilla
Appl. Opt. 36(27) 6997-7007 (1997)

Thermovision applied to Benard-Marangoni convection

P. Cerisier, J. Pantaloni, G. Finiels, and R. Amalric
Appl. Opt. 21(12) 2153-2159 (1982)

Digital speckle-pattern interferometry as a full-field fluid-velocimetry technique

Nieves Andrés, M. Pilar Arroyo, Heiko Hinrichs, and Manuel Quintanilla
Opt. Lett. 24(9) 575-577 (1999)

Temperature measurement in laminar free convective flow using digital holography

Md. Mosarraf Hossain and Chandra Shakher
Appl. Opt. 48(10) 1869-1877 (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)