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Details van artikel 7 van 10 gevonden artikelen
| Titel: |
Numerical Investigation of Particulate Flow Behavior in Particle-Wall Impaction |
| Auteur: |
Tu, J. Y. |
| Verschenen in: |
Aerosol science and technology |
| Paginering: | Jaargang 32 (2000) nr. 6 pagina's 509-526 |
| Jaar: |
2000-06-01 |
| Inhoud: |
The mean behavior of particulate flow in the vicinity of a wall, comprising both incident and reflected particles resulting from the process of particle-wall impaction, is studied using a Lagrangian approach. The influence of the incident and reflected particles on the mean behavior of particulate flow is investigated by separating the different contributions from these two groups of particles. From the Lagrangian simulation, a particle-rebound distance is identified within which the mean behavior of particulate flow has been significantly modified due to the process of particle-wall impaction. It is found that this particle rebound distance is dependent on Stokes number (particle inertia), fluid Reynolds number (fluid flow condition), and restitution coefficients (particle-wall impaction). One finding from this study is that the mean particulate velocity normal to the wall within the particle-rebound distance is suddenly decreased by the negative contribution from the reflected particles. Another finding of significant interest is that the mean particulate concentration near the edge of the particle-rebound distance has a significantly high value because of the slowing down motion of the reflected particles. It is also found that the main contribution to this change of mean behavior of particulate flow is due to the reflected particles and thereafter multiple impacts. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 10 gevonden artikelen
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