Browsing by Subject "Fluid dynamics (Mathematics)"

Now showing items 1-11 of 11

    • A playground for compressible natural convection with a nearly uniform density 

      Alboussière, Thierry; Curbelo Hernández, Jezabel; Dubuffet, Fabien; Labrosse, Stéphane; Ricard, Yanick (Cambridge University Press, 2022-06-10)
      Article
      Open Access
      In the quest to understand the basic universal features of compressible convection, one would like to disentangle genuine consequences of compression from spatial variations of transport properties. For instance, one may ...

    • A stabilized finite element method for incompressible viscous flows using a finite increment calculus formulation 

      Oñate Ibáñez de Navarra, Eugenio (1999-02)
      Research report
      Open Access
      A stabilized finite element formulation for incompressible viscous flows is derived. The starting point are the modified Navier-Stokes equations incorporating naturally the necessary stabilization terms via a finite increment ...

    • A superconvergent HDG method for stokes flow with strongly enforced symmetry of the stress tensor 

      Giacomini, Matteo; Karkoulias, Alexandros; Sevilla Cárdenas, Rubén; Huerta, Antonio (2018-12)
      Article
      Open Access
      This work proposes a superconvergent hybridizable discontinuous Galerkin (HDG) method for the approximation of the Cauchy formulation of the Stokes equation using same degree of polynomials for the primal and mixed variables. ...

    • eXtended hybridizable discontinuous Galerkin (X-HDG) for void and bimaterial problems 

      Gürkan, Ceren; Sala Lardies, Esther; Kronbichler, Martin; Fernández Méndez, Sonia (Springer, 2016)
      Part of book or chapter of book
      Restricted access - publisher's policy
      This volume of the SEMA SIMAI Springer Series brings together selected contributions presented at the international conference “eXtended Discretization MethodS” (X-DMS), held during September 2015 in Ferrara, Italy. The ...

    • Fast solution of parametric incompressible flow problems with application to microfluidics 

      Borrás Fernández, Álvaro (Universitat Politècnica de Catalunya, 2020-10)
      Master thesis
      Open Access
      The process of design in computational fluid dynamics often involves queries to a similar set of problems, which may be viewed together as a single problem with parametrized data. These parameters can be seen as extra ...

    • HI-FI Hybridisable Discontinuous Galerkin method for incompressible flows 

      Vila Pérez, Jordi (Universitat Politècnica de Catalunya, 2017-07)
      Master thesis
      Open Access
      The increasing interest in high-order discretization techniques for CFD applications is motivated by the high accuracy that these methods provide compared to low-order methods. In this project, the hybridizable discontinuous ...

    • Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures 

      Ruiz Gironès, Eloi; Oliver Serra, Albert; Socorro Marrero, Guillermo Valentín; Cascón Barbero, José Manuel; Escobar Sánchez, José M.; Montenegro Armas, Rafael; Sarrate Ramos, Josep (John Wiley & Sons, 2018)
      Article
      Open Access
      In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated ...

    • Monitoring, tracking and forecasting ionospheric perturbations using GNSS techniques 

      Jakowski, N; Béniguel, Yannick; De Franceschi,, Giorgiana; Hernández Pajares, Manuel; Jacobsen, Knut Stanley; Stanislawska, Iwona; Tomasik, Lukasz; Warnant, René; Wautelet, Gilles (2012-12-01)
      Article
      Open Access
      The paper reviews the current state of GNSS-based detection, monitoring and forecasting of ionospheric perturbations in Europe in relation to the COST action ES0803 ‘‘Developing Space Weather Products and Services in ...

    • Preface 

      Huerta, Antonio; Rodríguez Ferran, Antonio (2004-10)
      Article
      Open Access

    • Rotation-free triangular plate and shell elements 

      Oñate Ibáñez de Navarra, Eugenio; Zárate Araiza, José Francisco (1999-03)
      Research report
      Open Access
      The paper describes how the finite element method and the finite volume method can be successfully combined to derive two new families of thin plate and shell triangles with translational degrees of freedom as the only ...

    • Viscous damage model for Timoshenko beam structures 

      Barbat Barbat, Horia Alejandro; Oller Martínez, Sergio Horacio; Oñate Ibáñez de Navarra, Eugenio; Hanganu, Alex (1995-12)
      Research report
      Open Access
      A local damage constitutive model based on Kachanov’s theory is used within a finite element frame and applied to the case of 2D and 3D Timoshenko beam elements. The model takes into account viscous effects, thus allowing ...