Numerical simulation of geodynamic processes with the Portable Extensible Toolkit for Scientific Computation

Details Numerical simulation of geodynamic processes with the Portable Extensible Toolkit for Scientific Computation Numerical simulation of geodynamic processes with the Portable Extensible Toolkit for Scientific Computation

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007pepi..163...52k&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 163, Issue 1-4, p. 52-68.

Physics

13

Magma Migration, Mid-Oceanic Ridge Processes, Tectonophysics, Convection Currents And Mantle Plumes, Finite Volume Methods, Numerical Simulation, Solution Of Equations

Scientific paper

Geodynamics simulations are characterized by rheological nonlinearity, localization, three-dimensional effects, and separate but interacting length scales. These features represent a challenge for computational science. We discuss how a leading software framework for advanced scientific computing (the Portable Extensible Toolkit for Scientific Computation, PETSc) can facilitate the development of geodynamics simulations. To illustrate our use of PETSc, we describe simulations of (i) steady-state, non-Newtonian passive flow and thermal structure beneath a mid-ocean ridge, (ii) magmatic solitary waves in the mantle, and (iii) the formation of localized bands of high porosity in a two-phase medium being deformed under simple shear. We highlight two supplementary features of PETSc, structured storage of application parameters and self-documenting output, that are especially useful for geodynamics simulations.

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