Calculation of effective diffusivities for biofilms and tissues
β Scribed by Brian D. Wood; Michel Quintard; Stephen Whitaker
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 414 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0006-3592
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π SIMILAR VOLUMES
Upper and lower bounds for an effective ditfusivity characteristic of binary diffusion through a heterogeneous medium are calculated by imposing geometric and transport constraints on the pore size distribution. The method relies upon identifying moment spaces induced by Tchebycheff systems closely
Experimental measurements of effective diffusive permeabilities and effective diffusion coefficients in biofilms are reviewed. Effective diffusive permeabilities, the parameter appropriate to the analysis of reactiondiffusion interactions, depend on solute type and biofilm density. Three categories
To be realistic, diffusion in bidisperse porous structures is often considered in terms of macropore diffusion and micropore diffusion. In this approach the diffusivity and the mass balance are defined separately for each pore system. Ruckenstein et al. (1971) and many investigators (Haynes and Sarm
Diffusion and convective flow in the pores of pellets formed by compressing mixtures of calcined limestone and CaSO 4 /CaCl 2 powders have been studied experimentally by using the single pellet moment technique. The experiments were conducted in a diffusion cell by flowing nitrogen gas (carrier) thr