A parallel solver for large scale DFN flow simulations. Terms of use: This article is made available under terms and conditions applicable to Open Access Policy Article ("Public-All rights reserved") , as described at http://porto.polito.it/terms_and_conditions. html Porto, the institutional repository of the Politecnico di Torino, is provided by the University Library and the IT-Services. The ...

Porto, the institutional repository of the Politecnico di Torino, is provided by the University Library and the IT-Services. The aim is to enable open access to all the world. Please share with us how this access benefits you. Your story matters. Abstract. In this work, an optimization based approach presented in [5, 6, 7] for Discrete Fracture Network simulations is coupled with the Virtual El...

Discrete Fracture Network (DFN) is a modeling framework for fractured rocks. The core element the description of geological medium as network discrete fractures that can be either generated from statistical distributions or imported deterministic surfaces. It an alternative to continuum methods with both advantages easily integrating properties fracture networks, and not assuming any homogeniza...

Field-scale properties of fractured rocks play crucial role in many subsurface applications, yet methodologies for identification the statistical parameters a discrete fracture network (DFN) are scarce. We present an inversion technique to infer two such parameters, density and fractal dimension, from cross-borehole thermal experiments data. It is based on particle-based heat-transfer model, wh...

Since the beginning of 1986 the Canadian Mailsystem EAN has been used in DFN. EAN is available for three operating systems: DEC-VMS, D E C U N I X B S D / U L T R I X , PCS-UNIX-V. About 40 installations are in operation, and about 20 further installations are in preparation (see Table 1). EAN does not fully conform with the C E N / CENELEC functional standard. There is a number of differences ...

The discrete fracture networks (DFN) have become indispensable tools for geomechanical modelling of jointed rock masses. technology creates a three-dimensional (3D) representation geometry used in the construction surface and subsurface engineering projects mining, civil engineering, fracturing reservoir oil gas industry. approach depends on accuracy data obtained during site investigation to c...

Due to existence of uncertainties in input geometrical properties of fractures, there is not any unique solution for assessing the stability of slopes in jointed rock masses. Therefore, the necessity of applying probabilistic analysis in these cases is inevitable. In this study a probabilistic analysis procedure together with relevant algorithms are developed using Discrete Fracture Network-Dis...

We consider problems of provisioning a good to a number of participants who are able to communicate information about their private preferences for the good. The good may or may not be a public good. This provisioning is to be done in a manner that is incentive compatible, rational and feasible (in senses to be described). We show that as the number of participants becomes large there is a limi...

Zusammenfassung: Das multimedia lecture board (mlb) ist ein sogenanntes Shared Whiteboard und ermöglicht die Präsentation und die gemeinsame Bearbeitung von Dokumenten in computergestützten Videokonferenzen. Es wurde im Rahmen des DFN-Projekts “ANETTE” speziell für den Einsatz in TeleteachingVeranstaltungen entwickelt und findet seit dem Sommersemester 2001 Verwendung an verschiedenen Universit...