Nonlinear phenomena in fluids with temperature-dependent viscosity: an hysteresis model for magma flow in conduits

Simple item page
dc.creatorCosta, Antonio
dc.creatorMacedonio, Giovanni
dc.date2003-02-28
dc.date.accessioned2026-07-07T05:48:51Z
dc.date.available2026-07-07T05:48:51Z
dc.descriptionMagma viscosity is strongly temperature-dependent. When hot magma flows in a conduit, heat is lost through the walls and the temperature decreases along the flow causing a viscosity increase. For particular values of the controlling parameters the steady-flow regime in a conduit shows two stable solutions belonging either to the slow or to the fast branch. As a consequence, this system may show an hysteresis effect, and the transition between the two branches can occur quickly when certain critical points are reached. In this paper we describe a model to study the relation between the pressure at the inlet and the volumetric magma flow rate in a conduit. We apply this model to explain an hysteric jump observed during the dome growth at Soufrière Hills volcano (Montserrat), and described by Melnik and Sparks [1999] using a different model.
dc.description4 pages, 4 figures, corrected version of "Nonlinear phenomena in fluids with temperature-dependent viscosity: an hysteresis model for magma flow in conduits" GRL Vol 29, No 10,2002
dc.identifierhttps://arxiv.org/abs/physics/0302099
dc.identifierhttp://arxiv.org/abs/physics/0302099
dc.identifierGeophysical Research Letters, Vol 29, No 10, 23 May 2002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/85181
dc.subjectGeophysics
dc.subjectFluid Dynamics
dc.titleNonlinear phenomena in fluids with temperature-dependent viscosity: an hysteresis model for magma flow in conduits
dc.typetext

Files

Collections

arXiv