Zoekopdracht:
faculteit: "FNWI" en publicatiejaar: "2009"
| Auteurs | Z.J. Wang, C. Valeriani, D. Frenkel | | Titel | Homogeneous bubble nucleation driven by local hot spots: A Molecular Dynamics study |
| Uitgever | arXiv.Cornell University |
| Plaats | Ithaca, NY |
| Jaar | 2009 |
| Pagina's | 36 |
| Faculteit | Faculteit der Natuurwetenschappen, Wiskunde en Informatica |
| Instituut/afd. | FNWI: Van 't Hoff Institute for Molecular Sciences (HIMS) |
| Samenvatting | We report a Molecular Dynamics study of homogenous bubble nucleation in a Lennard-Jones fluid. The rate of bubble nucleation is estimated using forward-flux sampling (FFS). We find that cavitation starts with compact bubbles rather than with ramified structures as had been suggested by Shen and Debenedetti (J. Chem. Phys. 111:3581, 1999). Our estimate of the bubble-nucleation rate is higher than predicted on the basis of Classical Nucleation Theory (CNT). Our simulations show that local temperature fluctuations correlate strongly with subsequent bubble formation - this mechanism is not taken into account in CNT. |
| Soort document | Rapport |
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