Streamline computations for porous media flow including gravity

Autor:	C. Tegnander, Tore Gimse, Frode Bratvedt
Rok vydání:	1996
Předmět:	Permeability (earth sciences) Hydrogeology Capillary action General Chemical Engineering Computation Streamlines streaklines and pathlines Geometry Mechanics Saturation (chemistry) Porous medium Catalysis Finite element method Mathematics
Zdroj:	Transport in Porous Media. 25:63-78
ISSN:	1573-1634 0169-3913
DOI:	10.1007/bf00141262
Popis:	In this paper we consider porous media flow without capillary effects. We present a streamline method which includes gravity effects by operator splitting. The flow equations are treated by an IMPES method, where the pressure equation is solved by a (standard) finite element method. The saturation equation is solved by utilizing a front tracking method along streamlines of the pressure field. The effects of gravity are accounted for in a separate correction step. This is the first time streamlines are combined with gravity for three-dimensional (3D) simulations, and the method proves favourable compared to standard splitting methods based on fractional steps. By our splitting we can take advantage of very accurate and efficient 1D methods. The ideas have been implemented and tested in a full field simulator. In that context, both accuracy and CPU efficiency have tested favourably.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c1eaae687da7d852b9d0f87c5cf78910 https://doi.org/10.1007/bf00141262 Zobrazit plný text záznamu Full text from SpringerLink