Distribution of Mass, Velocity, and Intensity of Turbulence in a Two-Phase Turbulent Jet

[+] Author and Article Information
G. Hetsroni

Department of Nuclear Science, Technion–Israel Institute of Technology, Haifa, Israel

M. Sokolov

Division of Engineering, Brown University, Providence, R. I.

J. Appl. Mech 38(2), 315-327 (Jun 01, 1971) (13 pages) doi:10.1115/1.3408779 History: Received May 12, 1969; Revised May 04, 1970; Online July 12, 2010


The effect of small liquid droplets on the flow structure of an axially symmetrical turbulent air jet was studied. The flux of the droplets was measured and correlated by a normal-distribution curve with a spreading coefficient of 0.05. Distributions of time-average and fluctuating longitudinal velocities were measured and correlated. In general the two-phase jet is narrower than the single-phase one, with smaller normalized velocity fluctuations. Studies of the spectra and probability density functions indicated that the discontinuous phase causes suppression of turbulence in the dissipation range, namely at high wave numbers. This effect is proportional to the droplets’ concentration in the investigated range.

Copyright © 1971 by ASME
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