Turbulent Pipe Flow of Magnesia Particles in Air
Turbulent Pipe Flow of Magnesia Particles in Air
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DOI：
10.1021/i160019a016
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发表时间：
1966-08
期刊：
影响因子：
--
通讯作者：
S. Soo;G. Trezek
中科院分区：
文献类型：
--
作者：
S. Soo;G. Trezek
Results on concentration and mass flow distributions in turbulent gas-solid pipe flow are presented. The system consists of nominal 30-micron magnesium oxide particles in air. Experimental range includes mass ratios up to 3 pounds of solids per pound of air at Reynolds numbers from 1.3 X 105 to 2.95 X 105. The density distribution of solid particles is strongly influenced by their average charge to mass ratio, whilethe velocity distribution of the particles remains in the range where the collision among the solid particles is negligible.Qasic phenomena in gas-solid flow were recognized from a number of studies (3-7) on turbulent pipe flow of a sus-pension. They include differencesbetween the velocities of the phases (3), slip motion of solid particles at the wall (3, 5), electric charges and drift of solid particles as opposed by turbulent diffusion ofparticles and the resultant concentration distribution (4, 7), and the effect of solid particles on the state of turbulence (6). Since a semi-empirical method has to be used in dealing with turbulent pipe flow, a limited number of experiments afforded determination of empirical parameters for only a few cases. Extensive measurements in the present
