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| Titel: |
Diffusion of Fibers in a Tubular Flow |
| Auteur: |
Asgharian, B. Yu, C. P. Gradon, L. |
| Verschenen in: |
Aerosol science and technology |
| Paginering: | Jaargang 9 (1988) nr. 3 pagina's 213-219 |
| Jaar: |
1988 |
| Inhoud: |
Based on an ellipsoidal particle model, the equivalent diameter for the slip correction, diffusion coefficient, and diffusion diameter of fibers were obtained from the adjusted sphere method of Dahneke. The diffusion coefficient calculated for polydisperse crocidolite fibers compared favorably with available experimental data. Deposition of fibers in a tubular flow was then calculated with the use of the derived diffusion coefficient and applied to the human lung airways. The effect of velocity shear on particle orientation was also considered. It was found that the velocity shear had only a small effect on deposition. For a given fiber size, deposition increased in the lung distally, but at the same fiber diameter, the efficiency decreased with increasing aspect ratio. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 10 gevonden artikelen
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