Initial Collection Mechanisms in Deep Bed Filtration

Deep Bed Filtration: Modelling Theory and Practice

Effect of Filter Inhomogeneity on Deep-Bed Filtration Process – A CFD Investigation

Aerosol filtration in fibrous filters is one of the principal methods of removal of solid particles from the gas stream. The classical theory of depth filtration is based on the assumption of existing single fiber efficiency, which may be used to the recalculation of the overall efficiency of the entire filter. There are several reasons for inappropriate estimation of the single fi...

A Network Model for Deep Bed Filtration of Solid Particles and Emulsion Drops

A network model has been developed to simulate the flow of emulsions and solid particles through porous media. Particle deposition due to direct interception, as well pore plugging by straining are accounted for in the model. The effects of two important factors-the ratio of particle size to pore size, and the fluid velocity-on particle deposition are also investigated. The strength of the mode...

Deep Bed Filtration Modelling of Formation Damage Due to Particulate Invasion from Drilling Fluids

A Deep Bed Filtration model has been developed to quantify the effect of solids invasion from drilling fluids on the permeability of rock formations. The calculated particletrapping profiles are compared directly with experimental profiles from scanning electron microscopy and synchrotron X -ray diffraction tomography mapping. The computed permeability reduction as a consequence of particle inv...

Granulocyte collection by continuous-flow filtration leukapheresis.

A safe and simple technique for the ing preformed leukocyte antibodies, as collection of large numbers of granucompared to the median increment of locytes from normal donors, based on 850/cu mm reported following transthe reversible adhesion of granulocytes fusion of leukocytes obtained by difto nylon wool filters, is described. The ferential centrifugation. The safety and procedure is well tol...