Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
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EL
| URI | http://purl.tuc.gr/dl/dias/B4952908-F545-45DF-BD3D-CC4581E51971 | - |
| Αναγνωριστικό | https://www.tandfonline.com/doi/full/10.1080/01694243.2016.1232955 | - |
| Αναγνωριστικό | https://doi.org/10.1080/01694243.2016.1232955 | - |
| Γλώσσα | en | - |
| Μέγεθος | 27 pages | en |
| Τίτλος | Modelling of particle resuspension by a turbulent airflow and the role of particle size, surface roughness and electric charge | en |
| Δημιουργός | Chatoutsidou Sofia-Eirini | en |
| Δημιουργός | Χατουτσιδου Σοφια-Ειρηνη | el |
| Δημιουργός | Drossinos, Ioannis | en |
| Δημιουργός | Tørseth, Kjetil 1966- | en |
| Δημιουργός | Lazaridis Michalis | en |
| Δημιουργός | Λαζαριδης Μιχαλης | el |
| Εκδότης | Taylor & Francis | en |
| Περίληψη | A resuspension model based on the Lennard–Jones intermolecular potential is applied to a monolayer deposit of spherical particles. The model considers the interactions between a particle and a surface under the influence of an external turbulent airflow. The particle–surface interaction was modelled with and without particle deformation due to elastic flattening. The resuspension rate was calculated by a kinetic force-balance approach whereby particle detachment occurs when the instantaneous joint contribution of the lift and drag forces exceeds the total adhesive force of the particle–surface system. Enhanced aerodynamic particle removal driven by the moment of the lift and drag forces was determined. Model predictions suggest that inclusion of the moment of the aerodynamic forces provides a suitable model for particle detachment (initiated by rolling). The importance of elastic deformation was found to depend on adhesive forces, characteristics of the substrate surface (surface roughness) and particle size. The model was applied to a number of laboratory experiments. For one set of experiments, we identified two resuspension regimes depending on whether small non-deformable or large deformable (equivalently, strongly or weakly bound) particles resuspended at high or low friction velocities. A modified model incorporating the effect of particle charge is also presented. Results indicate that particle resuspension is possible even when electrostatic forces are present, but the resuspension rate decreases considerably, depending on particle size, particle charge and surface roughness. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2018-05-17 | - |
| Ημερομηνία Δημοσίευσης | 2017 | - |
| Θεματική Κατηγορία | Adhesion | en |
| Θεματική Κατηγορία | Elastic flattening | en |
| Θεματική Κατηγορία | Lennard–Jones potential | en |
| Θεματική Κατηγορία | Particle charge | en |
| Θεματική Κατηγορία | Resuspension | en |
| Βιβλιογραφική Αναφορά | S. E. Chatoutsidou, Y. Drossinos, K. Tørseth and M. Lazaridis, "Modelling of particle resuspension by a turbulent airflow and the role of particle size, surface roughness and electric charge," J. Adhes. Sci. Technol., vol. 31, no. 8, pp. 817-843, April 2017. doi: 10.1080/01694243.2016.1232955 | en |
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