Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9531001 | Journal of Volcanology and Geothermal Research | 2005 | 13 Pages |
Abstract
We provide a didactic explanation of how to include the effect of bubble-suspension rheology in continuum, conduit-flow models. Bubble-suspension rheology is reviewed and a practical rheological model is presented, followed by an algorithmic, step-by-step guide to including the rheological model in conduit-flow models. Preliminary results from conduit-flow models which have implemented the model presented are discussed and it is concluded that the effect of bubbles on magma rheology may be important in nature and results in a decrease of at least 800 m in calculated fragmentation-depth and an increase of between 40% and 250% in calculated eruption-rate compared with the assumption of Newtonian rheology.
Keywords
Related Topics
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Geochemistry and Petrology
Authors
E.W. Llewellin, M. Manga,