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Modeling of geophysical problems using software ASPECT

Class at Faculty of Mathematics and Physics |
NGEO114

Syllabus

- Structure and applicability of ASPECT software, overview of solved equations. Installation and run in docker, in a virtual maschine and locally (Linux). Structure of the input file. Working with documentation. Visualization of results in Paraview and Gnuplot.

- Different geometries and shapes of the model domain; 2D and 3D. Computational grid. Adaptive remeshing. Free surface.

- Selected modelled problems: thermal convection, lithospheric deformation, melting and two-phase flow.

- Advection equation. Tracking of material composition. Active and passive tracers.

- Material types in ASPECT. Viscous, visco-plastic and visco-elastic materials.

- Adding new properties into ASPECT using plugins.

Annotation

Practical introduction into the modelling of geophysical problems using software ASPECT. We will solve for example: thermal convection, lithospheric deformation, melting and two-phase flow; in different geometries and for different rheologies.

Individual work: model adjustments, tests of resolution, accuracy and performance; postprocessing. Installation and modifications of ASPECT for more advanced modelling.

Basic knowledge of continuum mechanics is expected.