Flash X-ray and high speed photography were used to experimentally investigate the fragmentation process of single tin drops (0.5 g) in water during a steam explosion. Water velocities ranging from 9 to 28 m/s and a melt temperature of 800$ sp circ$C were used in order to study the effect of the water velocity on the drop fragmentation. Tests were also conducted in which the drop break-up was due entirely to hydrodynamic effects to evaluate the influence of the thermal energy on the fragmentation mechanism. / Results showed that there was a transition from thermal to hydrodynamic fragmentation through an intermediate stage in which the drops initially underwent hydrodynamic fragmentation followed by the formation of a vapour bubble. For low velocities (9 m/s) this bubble collapsed, fragmenting the remainder of the drop while at great velocities (15 m/s) the drop broke up within the bubble before it condensed. At 22 and 28 m/s there was no vapour formation and the drop fragmented due to hydrodynamic effects. The total non-dimensional break-up time was 2.0-2.5 for all cases.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.27214 |
| Date | January 1996 |
| Creators | Cunningham, Mark Huzzard. |
| Contributors | Frost, David (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Engineering (Department of Mechanical Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001554702, proquestno: MQ29587, Theses scanned by UMI/ProQuest. |
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