Simulation of lava flows with power-law rheology | Zendy

Marilena Filippucci | Zendy; Andrea Tallarico | Zendy; Michele Dragoni | Zendy

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Simulation of lava flows with power-law rheology

Author(s) -

Marilena Filippucci,

Andrea Tallarico,

Michele Dragoni

Publication year - 2012

Publication title -

discrete and continuous dynamical systems - s

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.481

H-Index - 34

eISSN - 1937-1632

pISSN - 1937-1179

DOI - 10.3934/dcdss.2013.6.677

Subject(s) - rheology , lava , mechanics , power law , power law fluid , work (physics) , constant (computer programming) , flow (mathematics) , newtonian fluid , volume (thermodynamics) , non newtonian fluid , bingham plastic , geology , thermodynamics , physics , mathematics , computer science , statistics , volcano , seismology , programming language

In this work we studied the effect of a power-law rheology on a gravity driven lava flow. Assuming a viscous fluid with constant temperature and constant density and assuming a steady flow in an inclined rectangular channel, the equation of the motion is solved by the finite volume method and a classical iterative solutor. Comparisons with observed channeled lava flows indicate that the assumption of the power-law rheology causes relevant differences in average velocity and volume flow rate with respect to the Newtonian rheology

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