FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4238255298> ?p ?o ?g. }

• W4238255298 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Predicting effective permeabilities of fractured rock masses is a crucial component of reservoir modeling. Its often realized with the discrete fracture network (DFN) method, whereby single-phase incompressible fluid flow is modeled in discrete representations of individual fractures in a network. Depending on the overall number of fractures, this can result in high computational costs. Equivalent continuum models (ECMs) provide an alternative approach by subdividing the fracture network into a grid of continuous medium cells, over which hydraulic properties are averaged for fluid flow simulations. While continuum methods have the advantage of lower computational costs and the possibility of including matrix properties, choosing the right cell size to discretize the fracture network into an ECM is crucial to provide accurate flow results and conserve anisotropic flow properties. Whereas several techniques exist to map a fracture network onto a grid of continuum cells, the complexity related to flow in fracture intersections is often ignored. Here, numerical simulations of Stokes flow in simple fracture intersections are utilized to analyze their effect on permeability. It is demonstrated that intersection lineaments oriented parallel to the principal direction of flow increase permeability in a process we term intersection flow localization (IFL). We propose a new method to generate ECMs that includes this effect with a directional pipe flow parameterization: the fracture-and-pipe model. Our approach is compared against an ECM method that does not take IFL into account by performing ECM-based upscaling with a massively parallelized Darcy flow solver capable of representing permeability anisotropy for individual grid cells. While IFL results in an increase in permeability at the local scale of the ECM cell (fracture scale), its effects on network-scale flow are minor. We investigated the effects of IFL for test cases with orthogonal fracture formations for various scales, fracture lengths, hydraulic apertures, and fracture densities. Only for global fracture porosities above <span class=inline-formula>30 %</span> does IFL start to increase the systems permeability. For lower fracture densities, the effects of IFL are smeared out in the upscaling process. However, we noticed a strong dependency of ECM-based upscaling on its grid resolution. Resolution tests suggests that, as long as the cell size is smaller than the minimal fracture length and larger than the maximal hydraulic aperture of the considered fracture network, the resulting effective permeabilities and anisotropies are resolution-independent. Within that range, ECMs are applicable to upscale flow in fracture networks." @default.
• W4238255298 created "2022-05-12" @default.
• W4238255298 creator A5086817294 @default.
• W4238255298 date "2021-06-08" @default.
• W4238255298 modified "2023-09-30" @default.
• W4238255298 title "Reply on RC2" @default.
• W4238255298 doi "https://doi.org/10.5194/se-2020-208-ac2" @default.
• W4238255298 hasPublicationYear "2021" @default.
• W4238255298 type Work @default.
• W4238255298 citedByCount "0" @default.
• W4238255298 crossrefType "peer-review" @default.
• W4238255298 hasAuthorship W4238255298A5086817294 @default.
• W4238255298 hasBestOaLocation W42382552981 @default.
• W4238255298 hasConcept C114809511 @default.
• W4238255298 hasConcept C120882062 @default.
• W4238255298 hasConcept C121332964 @default.
• W4238255298 hasConcept C126255220 @default.
• W4238255298 hasConcept C127313418 @default.
• W4238255298 hasConcept C134306372 @default.
• W4238255298 hasConcept C185592680 @default.
• W4238255298 hasConcept C187320778 @default.
• W4238255298 hasConcept C187691185 @default.
• W4238255298 hasConcept C2524010 @default.
• W4238255298 hasConcept C2778770139 @default.
• W4238255298 hasConcept C33923547 @default.
• W4238255298 hasConcept C38349280 @default.
• W4238255298 hasConcept C41008148 @default.
• W4238255298 hasConcept C41625074 @default.
• W4238255298 hasConcept C43369102 @default.
• W4238255298 hasConcept C459310 @default.
• W4238255298 hasConcept C55493867 @default.
• W4238255298 hasConcept C57879066 @default.
• W4238255298 hasConcept C62520636 @default.
• W4238255298 hasConcept C73000952 @default.
• W4238255298 hasConcept C85725439 @default.
• W4238255298 hasConcept C90278072 @default.
• W4238255298 hasConceptScore W4238255298C114809511 @default.
• W4238255298 hasConceptScore W4238255298C120882062 @default.
• W4238255298 hasConceptScore W4238255298C121332964 @default.
• W4238255298 hasConceptScore W4238255298C126255220 @default.
• W4238255298 hasConceptScore W4238255298C127313418 @default.
• W4238255298 hasConceptScore W4238255298C134306372 @default.
• W4238255298 hasConceptScore W4238255298C185592680 @default.
• W4238255298 hasConceptScore W4238255298C187320778 @default.
• W4238255298 hasConceptScore W4238255298C187691185 @default.
• W4238255298 hasConceptScore W4238255298C2524010 @default.
• W4238255298 hasConceptScore W4238255298C2778770139 @default.
• W4238255298 hasConceptScore W4238255298C33923547 @default.
• W4238255298 hasConceptScore W4238255298C38349280 @default.
• W4238255298 hasConceptScore W4238255298C41008148 @default.
• W4238255298 hasConceptScore W4238255298C41625074 @default.
• W4238255298 hasConceptScore W4238255298C43369102 @default.
• W4238255298 hasConceptScore W4238255298C459310 @default.
• W4238255298 hasConceptScore W4238255298C55493867 @default.
• W4238255298 hasConceptScore W4238255298C57879066 @default.
• W4238255298 hasConceptScore W4238255298C62520636 @default.
• W4238255298 hasConceptScore W4238255298C73000952 @default.
• W4238255298 hasConceptScore W4238255298C85725439 @default.
• W4238255298 hasConceptScore W4238255298C90278072 @default.
• W4238255298 hasLocation W42382552981 @default.
• W4238255298 hasOpenAccess W4238255298 @default.
• W4238255298 hasPrimaryLocation W42382552981 @default.
• W4238255298 hasRelatedWork W126907992 @default.
• W4238255298 hasRelatedWork W1978981194 @default.
• W4238255298 hasRelatedWork W2004285327 @default.
• W4238255298 hasRelatedWork W2005336692 @default.
• W4238255298 hasRelatedWork W2007180340 @default.
• W4238255298 hasRelatedWork W2011470603 @default.
• W4238255298 hasRelatedWork W2013509547 @default.
• W4238255298 hasRelatedWork W2155917337 @default.
• W4238255298 hasRelatedWork W3047596552 @default.
• W4238255298 hasRelatedWork W2474502839 @default.
• W4238255298 isParatext "false" @default.
• W4238255298 isRetracted "false" @default.
• W4238255298 workType "peer-review" @default.