Ir al contenido (pulsa Retorno)

Universitat Politècnica de Catalunya

    • Català
    • Castellano
    • English
    • LoginRegisterLog in (no UPC users)
  • mailContact Us
  • world English 
    • Català
    • Castellano
    • English
  • userLogin   
      LoginRegisterLog in (no UPC users)

UPCommons. Global access to UPC knowledge

58.848 UPC E-Prints
You are here:
View Item 
  •   DSpace Home
  • E-prints
  • Programes de doctorat
  • Doctorat en Enginyeria Tèrmica
  • Articles de revista
  • View Item
  •   DSpace Home
  • E-prints
  • Programes de doctorat
  • Doctorat en Enginyeria Tèrmica
  • Articles de revista
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

A symmetry-preserving second-order time-accurate PISO-based method

Thumbnail
View/Open
RKSymmFoamforJannes.pdf (1,002Mb) (Restricted access)   Request copy 

Què és aquest botó?

Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:

  • Disposem del correu electrònic de l'autor
  • El document té una mida inferior a 20 Mb
  • Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Share:
 
 
10.1016/j.compfluid.2021.104979
 
  View Usage Statistics
Cita com:
hdl:2117/355698

Show full item record
Komen, E.M.J.
Hopman, Johannes ArendMés informacióMés informació
Frederix, E.M.A.
Trias Miquel, Francesc XavierMés informacióMés informacióMés informació
Verstappen, Roel
Document typeArticle
Defense date2021-07-15
PublisherElsevier
Rights accessRestricted access - publisher's policy (embargoed until 2023-08-01)
Attribution-NonCommercial-NoDerivs 4.0 International
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 4.0 International
Abstract
A new conservative symmetry-preserving second-order time-accurate PISO-based pressure-velocity coupling for solving the incompressible Navier-Stokes equations on unstructured collocated grids is presented in this paper. This new method for implicit time stepping is an extension of the conservative symmetrypreserving incremental-pressure projection method for explicit time stepping and unstructured collocated meshes of Trias et al. [35]. In order to assess and compare both methods, we have implemented them within one unified solver in the open source code OpenFOAM where we use a Butcher array to prescribe the Runge-Kutta method. Thus, by changing the entries of the Butcher array, explicit and diagonally implicit Runge-Kutta schemes can be combined into one solver. We assess the energy conservation properties of the implemented discretisation methods and the temporal consistency of the selected Runge-Kutta schemes using Taylor-Green vortex and lid-driven cavity flow test cases. Finally, we use a more complex turbulent channel flow test case in order to further assess the performance of the presented new conservative symmetry-preserving incremental-pressure PISO-based method. Although both implemented methods are based on a symmetry-preserving discretisation, we show they still produce a small amount of numerical dissipation when the total pressure is directly solved from a Poisson equation. When an incremental-pressure approach is used, where a pressure correction is solved from a Poisson equation, both methods are effectively fully-conservative. For high-fidelity simulations of incompressible turbulent flows, it is highly desirable to use fully-conservative methods. For such simulations, the presented numerical methods are therefore expected to have large added value, since they pave the way for the execution of truly energy-conservative high-fidelity simulations in complex geometries. Furthermore, both methods are implemented in OpenFOAM, which is widely used within the CFD community, so that a large part of this community can benefit from the developed and implemented numerical methods.
CitationKomen, E. [et al.]. A symmetry-preserving second-order time-accurate PISO-based method. "Computers and fluids", 15 Juliol 2021, vol. 225, p. 104979/1-104979/21. 
URIhttp://hdl.handle.net/2117/355698
DOI10.1016/j.compfluid.2021.104979
ISSN0045-7930
Publisher versionhttps://www.sciencedirect.com/science/article/abs/pii/S0045793021001468
Collections
  • Doctorat en Enginyeria Tèrmica - Articles de revista [17]
  • Departament de Màquines i Motors Tèrmics - Articles de revista [429]
  • CTTC - Centre Tecnològic de la Transferència de Calor - Articles de revista [140]
Share:
 
  View Usage Statistics

Show full item record

FilesDescriptionSizeFormatView
RKSymmFoamforJannes.pdfBlocked1,002MbPDFRestricted access

Browse

This CollectionBy Issue DateAuthorsOther contributionsTitlesSubjectsThis repositoryCommunities & CollectionsBy Issue DateAuthorsOther contributionsTitlesSubjects

© UPC Obrir en finestra nova . Servei de Biblioteques, Publicacions i Arxius

info.biblioteques@upc.edu

  • About This Repository
  • Contact Us
  • Send Feedback
  • Inici de la pàgina