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Seven problems in bubble and jet drop researches 1
Author(s) -
Blanchard Duncan C.,
Syzdek Lawrence D.
Publication year - 1978
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1978.23.3.0389
Subject(s) - drop (telecommunication) , bubble , mechanics , bursting , jet (fluid) , sizing , capillary action , materials science , physics , thermodynamics , chemistry , mechanical engineering , engineering , biology , organic chemistry , neuroscience
Four of the problems deal with the mechanics of bubble production and bursting, and the collection and sizing of jet drops; three concern the transfer of the bacterium Serratia marcescens from bursting bubbles to jet drops. The problem of producing bubbles of a specified size from glass capillary tips is overcome by paying careful attention to tip geometry. Problems associated with bubble bursting have not been solved, but it is believed that they are caused by small differences in the position of the bubble relative to the interface at the time of bursting. The collection and sizing of jet drops can cause problems, but suggestions are given to overcome them. Of the three problems involving bacteria, only the last appears to have a satisfactory solution. Experiments show that the concentration of bacteria is always highest in the top jet drop of the jet set and decreases progressively in the lower drops, being lowest in the bottom drop. This is in qualitative agreement with the hypothesis of jet drop formation advanced by MacIntyre.