title: Pore Scale Simulation of Transport in Porous Media creator: Fahlke, Jorrit subject: ddc-530 subject: 530 Physics description: When performing solute transport in porous media one often observes an asymmetric break-through curve with a very slow decline of the concentration. This phenomenon even appears with non-sorbing solutes and is known as tailing. There are several hypotheses to explain this phenomenon. The modelling is often done using the mobile-immobile model (MIM), which assumes that parts of the solvent are not moving along with the general flow. The solutes can move into these stagnant zones by diffusion which leads to the observed tailing. In this thesis it is checked whether tailing can indeed be explained by stagnant zones, which may result e.g. from dead-end pores or pores perpendicular to the direction of the flow. A program to simulate transport in porous media was developed and verified using several test-problems. An example calculation with a randomly generated porous medium was performed. The resulting break-through curves showed significant tailing. date: 2008 type: Master's thesis type: info:eu-repo/semantics/masterThesis type: NonPeerReviewed format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/8915/1/movie.zip format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/8915/2/thesis_online.pdf format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/8915/3/thesis_print_oneside.pdf format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/8915/4/thesis_print.pdf identifier: DOI:10.11588/heidok.00008915 identifier: urn:nbn:de:bsz:16-opus-89155 identifier: Fahlke, Jorrit (2008) Pore Scale Simulation of Transport in Porous Media. [Master's thesis] relation: https://archiv.ub.uni-heidelberg.de/volltextserver/8915/ rights: info:eu-repo/semantics/openAccess rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html language: eng