eprintid: 24230 rev_number: 27 eprint_status: archive userid: 3678 dir: disk0/00/02/42/30 datestamp: 2018-03-28 09:05:29 lastmod: 2018-04-16 11:01:58 status_changed: 2018-03-28 09:05:29 type: masterThesis metadata_visibility: show creators_name: Mehta, Saurabh title: Matrix Free approach for Raviart-Thomas anisotropic Tensor Product Finite Elements subjects: ddc-004 subjects: ddc-510 divisions: i-110001 adv_faculty: af-11 cterms_swd: Finite element cterms_swd: Mixed Finite element cterms_swd: Raviart-Thomas Finite Element cterms_swd: high performance computing cterms_swd: matrixfree abstract: In this thesis, we develop techniques for fast, efficient cell based operator evaluation of Raviart-Thomas finite elements and thereby extend the existing implementation of matrix free framework in deal.ii. The extensions allow the framework to also support anisotropic vector-valued finite elements in addition to existing isotropic Lagrangian finite elements. Tests on finite element operators in divergence conforming spaces for Mixed diffusion equation and Stokes equations show that the method is sufficiently accurate (relative error 10e-16) and for RT2 is already twice as fast as corresponding sparse matrix based solution. date: 2018 id_scheme: DOI id_number: 10.11588/heidok.00024230 ppn_swb: 1654787787 own_urn: urn:nbn:de:bsz:16-heidok-242308 date_accepted: 2018-03-27 advisor: HASH(0x561a62918818) language: eng bibsort: MEHTASAURAMATRIXFREE2018 full_text_status: public place_of_pub: Heidelberg, Germany thesis_type: Master citation: Mehta, Saurabh (2018) Matrix Free approach for Raviart-Thomas anisotropic Tensor Product Finite Elements. [Master's thesis] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/24230/8/MehSa_Thesis-1.pdf document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/24230/14/MehSa_Thesis_old_version.pdf