Formation of microbeads during vapor explosions of Field's metal in water
Type
ArticleKAUST Department
High-Speed Fluids Imaging LaboratoryMechanical Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant Number
FCC/1/1975Date
2016-06-17Permanent link to this record
http://hdl.handle.net/10754/614393
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Show full item recordAbstract
We use high-speed video imaging to investigate vapor explosions during the impact of a molten Field's metal drop onto a pool of water. These explosions occur for temperatures above the Leidenfrost temperature and are observed to occur in up to three stages as the metal temperature is increased, with each explosion being more powerful that the preceding one. The Field's metal drop breaks up into numerous microbeads with an exponential size distribution, in contrast to tin droplets where the vapor explosion deforms the metal to form porous solid structures. We compare the characteristic bead size to the wavelength of the fastest growing mode of the Rayleigh-Taylor instability.Citation
Formation of microbeads during vapor explosions of Field's metal in water 2016, 93 (6) Physical Review ESponsors
The research described herein was funded by KAUST. We acknowledge financial support from CCRC at KAUST, Extreme Combustion FCC/1/1975. We thank Ivan Vakarelski for help with some of the experiments.Publisher
American Physical Society (APS)Journal
Physical Review EPubMed ID
27415359Additional Links
http://link.aps.org/doi/10.1103/PhysRevE.93.063108ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevE.93.063108
Scopus Count
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