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Rheological controls on the dynamics of channeled lava flows

Robertson, Jesse Craig


The influence of a viscoplastic lava rheology on the dynamics of channeled lava flows is analysed using numerical methods and analogue experiments. A numerical solution for the flow of a Bingham fluid in a rectangular channel is found using a multigrid-based augmented Lagrangian scheme. The numerical results show that an internal viscoplastic rheology significantly modifies the velocity distribution within a lava flow through the development of plug regions whose size is determined by the...[Show more]

CollectionsOpen Access Theses
Date published: 2012
Type: Thesis (PhD)
DOI: 10.25911/5d5e77202a47c
Access Rights: Open Access


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