Effect of collisions on the dispersed phase fluctuation in a dilute tube flow: experimental and theoretical analysis
Measurements of particle fluctuation in a fully developed pipe flow at moderate Reynolds
number is performed in this study. The present data are obtained by using a two-component
phase Doppler anemometer. The radial profiles are measured at a distance of 0.2 diameter
downstream the exit of the tube. At this location, the core flow still carries all the properties of
the tube turbulence. A low mass loading of partly responsive particles is considered. The
Stokes number of these partly responsive particles is of order 3 when the integral turbulent …
number is performed in this study. The present data are obtained by using a two-component
phase Doppler anemometer. The radial profiles are measured at a distance of 0.2 diameter
downstream the exit of the tube. At this location, the core flow still carries all the properties of
the tube turbulence. A low mass loading of partly responsive particles is considered. The
Stokes number of these partly responsive particles is of order 3 when the integral turbulent …
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