Transport Phenomena in Porous Structures

  • Frank A. CoutelierisEmail author
  • J. M. P. Q. Delgado
Part of the Advanced Structured Materials book series (STRUCTMAT, volume 20)


The phenomenon of diffusion and dispersion (axial and radial) in packed beds is summarized and reviewed for literature data. Several variables should be considered, such as 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 temperature effect (or Schmidt number). Empirical correlations are presented for the prediction of dispersion coefficients (axial and radial) over the entire range of practical values of Schmidt number and Peclet numbers. Engineering aspects of radial and axial dispersion on non-Newtonian fluids in packed beds are also considered.


Porous Medium Molecular Diffusion Dispersion Coefficient Peclet Number Supercritical Carbon Dioxide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg  2012

Authors and Affiliations

  1. 1.Department of Environmental and Natural Resources ManagementUniversity of IoanninaAgrinioGreece
  2. 2.Laboratorio de Fisica das ConstruccoesFaculdade de Engenharia Universidade do PortoPortoPortugal

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