Browsing by Author "Exner Pavel"
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- ItemApplied mathematics - methodical handbook for AP course(2015) Severýn Otto; Stebel Jan; Exner Pavel
- ItemExtended finite element method in mixed-hybrid model of singular groundwater flow(Elsevier, 2021) Exner Pavel; Březina Jan
- ItemFast algorithms for intersection of non-matching grids using Plucker coordinates(2017) Březina Jan; Exner PavelThe XFEM and Mortar methods can be used in combination with non-matching or non-conforming grids to deal with problems on complex geometries. However the information about the mesh intersection must be provided. We present algorithms for intersections between 1d and 2d unstructured multi component simplicial meshes and their intersections with a background unstructured 3d mesh. A common algorithm based on the advancing front technique is used for the efficient selection of candidate pairs among simplicial elements. Bounding interval hierarchy (BIH) of axes aligned bounding boxes (AABB) of elements is used to initialize the front tracking algorithm. The family of element intersection algorithms is built upon a line–triangle intersection algorithm based on the Plücker coordinates. These algorithms combined with the advancing front technique can reuse the results of calculations performed on the neighboring elements and reduce the number of arithmetic operations. Barycentric coordinates on each of the intersecting elements are provided for every intersection point. Benchmarks of the element intersection algorithms are presented and three variants of the global intersection algorithm are compared on the meshes raising from hydrogeological applications.
- ItemFlow123d – Version 1.8.0(2014) Březina Jan; Stebel Jan; Exner Pavel
- ItemFlow123d verze 3.0.0(2017) Březina Jan; Stebel Jan; Exner Pavel; Hybš Jan
- ItemMultidimensional model of flow and transport in fractured rock for support of Czech deep geological repository program(2018) Hokr Milan; Březina Jan; Maryška Jiří; Královcová Jiřina; Říha Jakub; Exner Pavel; Hančilová Ilona; Balvín Aleš
- ItemPartition of unity methods for approximation of point water sources in porous media(Elsevier, 2016) Exner Pavel; Březina Jan
- ItemResearch support for the deep repository safety assessment in 2015(2015) Královcová Jiřina; Maryška Jiří; Říha Jakub; Březina Jan; Hokr Milan; Chudoba Josef; Rálek Petr; Škarydová Ilona; Exner Pavel; Slavík Lubomír; Špánek Roman
- ItemResearch Support for the Deep Repository Safety Assessment in 2016(2016) Maryška Jiří; Královcová Jiřina; Březina Jan; Říha Jakub; Hokr Milan; Hančilová Ilona; Stebel Jan; Chudoba Josef; Balvín Aleš; Rálek Petr; Exner Pavel; Landa Jiří
- ItemResearch Support for the Deep Repository Safety Assessment in 2017(2017) Maryška Jiří; Královcová Jiřina; Březina Jan; Říha Jakub; Hokr Milan; Hančilová Ilona; Stebel Jan; Chudoba Josef; Balvín Aleš; Rálek Petr; Exner Pavel; Landa Jiří
- ItemResearch Support for the Deep Repository Safety Assessment in 2018(2018) Maryška Jiří; Královcová Jiřina; Březina Jan; Říha Jakub; Hokr Milan; Hančilová Ilona; Stebel Jan; Chudoba Josef; Balvín Aleš; Rálek Petr; Exner Pavel; Landa Jiří