• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    A locally and globally phase-wise mass conservative numerical algorithm for the two-phase immiscible flow problems in porous media

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    A conservative to two phases-18-Nov-19-3.pdf
    Size:
    2.315Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Download
    Type
    Article
    Authors
    Fan, Xiaolin cc
    Salama, Amgad
    Sun, Shuyu cc
    KAUST Department
    Computational Transport Phenomena Lab
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2019-12-14
    Online Publication Date
    2019-12-14
    Print Publication Date
    2020-03
    Embargo End Date
    2021-12-14
    Permanent link to this record
    http://hdl.handle.net/10754/660990
    
    Metadata
    Show full item record
    Abstract
    In this work, we introduce a novel numerical method to solve the problem of two-phase immiscible flow in porous media that is conservative to both phases. In the widely used implicit pressure, explicit saturation (IMPES) scheme, the conservation of mass of both the two phases are summed to form an equation involving the total Darcy's velocity. In the discretization of such an equation it becomes difficult to enforce the conservation of mass of each phase. To guarantee the conservation of mass of both phases locally and hence globally, we introduce a scheme in which the time discretization of the mass conservation equations is considered separately. Cell-centered finite difference (CCFD) methods are adopted for spatial discretization, where the variables of fluid properties (i.e. relative permeability and mobility) are upwinded separately according to the velocity of each phase and not according to the total velocity. Furthermore, this new scheme updates all phase velocities and uses them to update the corresponding phase saturation. In addition, a two-scale of time-splitting methods are adopted for pressure equation and saturation equations to improve the computational efficiency. For the sake of simplicity, we show a number of examples of two-phase system in two-dimensional geometry solved using the new scheme. It is shown that the new scheme is more embracing the physics and it can be more accurate than traditional IMPES scheme, particularly for the cases in which the phase velocities are in opposite direction, and conventional IMPES schemes fail.
    Citation
    Fan, X., Salama, A., & Sun, S. (2020). A locally and globally phase-wise mass conservative numerical algorithm for the two-phase immiscible flow problems in porous media. Computers and Geotechnics, 119, 103370. doi:10.1016/j.compgeo.2019.103370
    Publisher
    Elsevier BV
    Journal
    Computers and Geotechnics
    DOI
    10.1016/j.compgeo.2019.103370
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0266352X19304343
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.compgeo.2019.103370
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program; Computational Transport Phenomena Lab

    entitlement

     
    DSpace software copyright © 2002-2023  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.