期刊
HEAT AND MASS TRANSFER
卷 42, 期 4, 页码 279-310出版社
SPRINGER
DOI: 10.1007/s00231-005-0019-0
关键词
packed beds; dispersion; longitudinal dispersion; transverse dispersion; mass transfer
The phenomenon of dispersion (transverse and longitudinal) in packed beds is summarized and reviewed for a great deal of information from the literature. Dispersion plays an important part, for example, in contaminant transport in ground water flows, in miscible displacement of oil and gas and in reactant and product transport in packed bed reactors. There are several variables that must be considered, in the analysis of dispersion in packed beds, like the length of the packed column, viscosity and density of the fluid, ratio of column diameter to particle diameter, ratio of column length to particle diameter, particle size distribution, particle shape, effect of fluid velocity and effect of temperature (or Schmidt number). Empirical correlations are presented for the prediction of the dispersion coefficients (D (T) and D (L)) over the entire range of practical values of Sc and Pe(m), and works on transverse and longitudinal dispersion of non-Newtonian fluids in packed beds are also considered.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据