| Zugriffsnummer | 53264 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Suppression and Control of Bipolar Powder Charging by Turbulence |
| Autor(in); Institution | |
| Quelle/Jahr | Physical Review Letters: 132 (2024), 5, 054004-1 - 054004-5 |
| Artikelnummer | 054004 |
| ISSN | 0031-9007 (print) ; 1079-7114 (online) |
| DOI | |
| Verlag | College Park, MD: American Physical Society (APS) |
| Zusammenfassung | Current models predict particles of the same material but different sizes to charge bipolar upon contacts; the resulting charge peaks endanger process safety. However, we found wall-bounded turbulence to suppress the powder’s electrostatic charging. Aerodynamic forces skew the collision frequency and narrow the charge distribution’s bandwidth. Bipolar charging reduces, especially in moderately polydisperse systems of a low Stokes number. Not the smallest but midsized particles charge most negatively. Moreover, turbulence separates charge, producing pockets of high electric potential in low-vorticity regions. |
| Forschungsprojekt | PowFEct |
| Förderinformationen (1) |
Förderername: European Research Council (ERC)
Förderer ID: 0000 0000 8923 0953 Förderer ID Typ: ISNI Titel der Förderung: PowFEct Förderungsnummer: 947606 URI der Förderung: https://cordis.europa.eu/project/id/947606/de |