An accurate quantification of the flow structure along the acoustic signal cycle in a forced two-phase jet
Laboratorio de Investigación en Fluidodinámica y Tecnologías de la Combustión-LIFTEC (CSIC-Universidad de Zaragoza), María de Luna, 10, 50018, Zaragoza, Spain.
a Corresponding author: email@example.com
Published online: 25 March 2014
This paper provides an experimental study of an acoustically forced two-phase air jet generated by a convergent nozzle. The used particles are transparent glass spheres with diameters between 2 and 50 μm (which gives Stokes number of order 1) and the selected forcing frequency (f=400 Hz) induces a powerful nearly periodic flow pattern. Measurements were done by a two-colour Phase-Doppler Anemometer. The experimental setup is computer-controlled to provide an accurate control with a high long-term stability. Measurements cover the whole forcing signal cycle. Raw measurements were carefully post-processed to avoid bias induced by the forcing and the instrument setup, as well as obtain right mean values of the dispersed flow. The effect of the forcing and the particle load allows authors to establish the effect of the acoustic forcing and the particle load on the jet.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.