2. Laser Doppler anemometry

A.P. Belousov, P. Ya. Belousov
Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences

The Doppler diagnostics of interface dynamics in gas-liquid flows

The interaction of fiber-optic Doppler anemometer with gas bubbles is modeled. The forming of a multispectral Doppler signal noted in [1] is detected. Difference between motion velocities of front and back interfaces causes additional spectral components appearance. Deformation of floating in viscous fluid air bubble interacting with flat surface is measured.
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