3 papers
physics.geo-ph2005
Numerical simulation of lava flows based on depth-averaged equations
Antonio Costa, Giovanni Macedonio
Risks and damages associated with lava flows propagation (for instance the most recent Etna eruptions) require a quantitative description of this phenomenon and a reliable forecast…
physics.flu-dyn2003
Viscous heating effects in fluids with temperature-dependent viscosity: triggering of secondary flows
A. Costa, G. Macedonio
Viscous heating can play an important role in the dynamics of fluids with strongly temperature-dependent viscosities because of the coupling between the energy and momentum equatio…
physics.geo-ph2003
Nonlinear phenomena in fluids with temperature-dependent viscosity: an hysteresis model for magma flow in conduits
Antonio Costa, Giovanni Macedonio
Magma 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 viscosit…