Two-Dimensional Simulation of Lift Velocities of Spherical Particles in Crossflow Microfiltration
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概要
- 論文の詳細を見る
We have successfully evaluated the lift velocities of spherical particles with diameters of 0.2–1 μm in crossflow microfiltration. The ascending migration of one or multiple particles that were located in a shear field, in the presence or absence of permeation flux, was computed using Newtonian dynamics and the fluctuating Navier–Stokes equation. In the case of a single particle, we found that the lift velocity was proportional to the square of the shear rate and the cube of the particle size. We also evaluated the lift velocity for a multiparticle system to investigate the effect of particle concentration. We found that the lift velocity tended to decrease as the particle concentration increased. We succeeded in performing the first evaluation of the lift velocity for a multiparticle system in the presence of permeation flux. We also showed that the ascent velocity of a particle is the linear sum of the lift velocity and the permeation flux.
- 社団法人 化学工学会の論文
- 2009-12-01
著者
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FUJITA MASAHIRO
Department of Pathology, Keiyukai Sapporo Hospital
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Nakao Shin-ichi
Department Of Chemical System Engineering Graduate School Of Engineering The University Of Tokyo
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Akamatsu Kazuki
Department Of Chemical System Engineering The University Of Tokyo
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Nakao Shin-ichi
Department Of Anesthesia Kyoto University Hospital
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ODA Kazunori
Department of Chemical System Engineering, The University of Tokyo
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Fujita Masahiro
Department Of Anatomy Sapporo Medical University
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Oda Kazunori
Department Of Chemical System Engineering The University Of Tokyo
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Akamatsu Kazuki
Department Of Environmental And Energy Chemistry Kogakuin University
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Fujita Masahiro
Department Of Chemical System Engineering The University Of Tokyo
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