TY - JOUR
T1 - Interactions between bubbles in magmas and lavas
T2 - effects of bubble deformation
AU - Manga, Michael
AU - Stone, H. A.
N1 - Funding Information:
This work was supported by I.G.P.P. grant 351 from Los Alamos National Lab, the American Chemical Society, and NSF grants CTS8957043 and EAR9218923. Reviews by Kathleen Schwindinger and Dork Sahagian have greatly improved this paper. We thank Harvard undergraduate Joe Rice for assistance with the experiments.
PY - 1994/11
Y1 - 1994/11
N2 - The interactions between two deformable bubbles are studied in order to determine the effects of deformation on bubble dynamics and to determine the limits in which the effects of deformation can be ignored. Deformation due to hydrodynamic interactions with other bubbles leads to alignment of horizontally offset bubbles and thus an enhanced rate of coalescence. Bubble alignment may produce spatial inhomogeneities in bubble concentrations in magmas, which implies temporal variations in the concentration and size of bubbles in erupting magmas and spatial variations in solidified lavas. An approximate quantitative model for the rate of coalescence of deformable bubbles is developed based on a series of experiments. The effects of deformation can be ignored if the largest bubbles have radii less than about 5 mm in silicate magmas.
AB - The interactions between two deformable bubbles are studied in order to determine the effects of deformation on bubble dynamics and to determine the limits in which the effects of deformation can be ignored. Deformation due to hydrodynamic interactions with other bubbles leads to alignment of horizontally offset bubbles and thus an enhanced rate of coalescence. Bubble alignment may produce spatial inhomogeneities in bubble concentrations in magmas, which implies temporal variations in the concentration and size of bubbles in erupting magmas and spatial variations in solidified lavas. An approximate quantitative model for the rate of coalescence of deformable bubbles is developed based on a series of experiments. The effects of deformation can be ignored if the largest bubbles have radii less than about 5 mm in silicate magmas.
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U2 - 10.1016/0377-0273(94)90079-5
DO - 10.1016/0377-0273(94)90079-5
M3 - Article
AN - SCOPUS:0028583535
SN - 0377-0273
VL - 63
SP - 267
EP - 279
JO - Journal of Volcanology and Geothermal Research
JF - Journal of Volcanology and Geothermal Research
IS - 3-4
ER -