Filtration theory using computer simulations

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We have used commercially available fluid dynamics codes based on Navier-Stokes theory and the Langevin particle equation of motion to compute the particle capture efficiency and pressure drop through selected two- and three- dimensional fiber arrays. The approach we used was to first compute the air velocity vector field throughout a defined region containing the fiber matrix. The particle capture in the fiber matrix is then computed by superimposing the Langevin particle equation of motion over the flow velocity field. Using the Langevin equation combines the particle Brownian motion, inertia and interception mechanisms in a single equation. In contrast, most ... continued below

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15 p.

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Bergman, W. & Corey, I. January 1997.

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Description

We have used commercially available fluid dynamics codes based on Navier-Stokes theory and the Langevin particle equation of motion to compute the particle capture efficiency and pressure drop through selected two- and three- dimensional fiber arrays. The approach we used was to first compute the air velocity vector field throughout a defined region containing the fiber matrix. The particle capture in the fiber matrix is then computed by superimposing the Langevin particle equation of motion over the flow velocity field. Using the Langevin equation combines the particle Brownian motion, inertia and interception mechanisms in a single equation. In contrast, most previous investigations treat the different capture mechanisms separately. We have computed the particle capture efficiency and the pressure drop through one, 2-D and two, 3-D fiber matrix elements.

Physical Description

15 p.

Notes

INIS; OSTI as DE98050940

Other: FDE: PDF; PL:

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  • 24. nuclear air cleaning and treatment conference, Portland, OR (United States), 15-18 Jul 1996

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  • Other: DE98050940
  • Report No.: UCRL-JC--127232
  • Report No.: CONF-960715--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 325068
  • Archival Resource Key: ark:/67531/metadc684757

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  • January 1997

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  • July 25, 2015, 2:20 a.m.

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  • April 10, 2017, 1:45 p.m.

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Bergman, W. & Corey, I. Filtration theory using computer simulations, article, January 1997; California. (digital.library.unt.edu/ark:/67531/metadc684757/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.