Now showing items 1-14 of 14

    • A FIC-based stabilized finite element formulation for turbulent flows 

      Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2017-03)
      Article
      Open Access
      We present a new stabilized finite element (FEM) formulation for incompressible flows based on the Finite Increment Calculus (FIC) framework. In comparison to existing FIC approaches for fluids, this formulation involves ...
    • A new tool for the practical simulation of fluid-structure interaction problems 

      Cotela Dalmau, Jordi (Universitat Politècnica de Catalunya, 2009-06-23)
      Minor thesis
      Open Access
      La interacció fluid-estructura és un exemple clàssic de problema acoblat resolt mitjançant el mètode d'elements finits. Aquesta tesina l'estudia tant des d'un punt de vista teòric com pràctic. Des del vessant pràctic, es ...
    • A two-step monolithic method for efficient simulation of incompressible flows 

      Ryzhakov, Pavel; Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2014-04)
      Article
      Restricted access - publisher's policy
      We propose a simple technique for improving computational the e ciency of monolithic velocity-pressure solvers for incompressible ow problems. The idea consists in solving the discrete non-linear system of governing ...
    • A two-step monolithic method for the efficient simulation of incompressible flows 

      Ryzhakov, Pavel; Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio (2014-01)
      Article
      Restricted access - publisher's policy
      We propose a simple technique for improving computationally the efficiency of monolithic velocity–pressure solvers for incompressible flow problems. The idea consists in solving the discrete nonlinear system of governing ...
    • Applications of turbulence modeling in civil engineering 

      Cotela Dalmau, Jordi (Universitat Politècnica de Catalunya, 2016-01-15)
      Doctoral thesis
      Open Access
      This thesis explores the use of stabilized finite element formulations for the incompressible Navier-Stokes equations to simulate turbulent flow problems. Turbulence is a challenging problem due to its complex and dynamic ...
    • Applications of turbulence modeling in civil engineering 

      Cotela Dalmau, Jordi; Oñate Ibáñez de Navarra, Eugenio; Rossi, Riccardo (International Centre for Numerical Methods in Engineering (CIMNE), 2016)
      Book
      Open Access
      This work explores the use of stabilized finite element formulations for the incompressible Navier-Stokes equations to simulate turbulent flow problems. Turbulence is a challenging problem due to its complex and dynamic ...
    • Mejora de la solución fuertemente acoplada de problemas FSI mediante una aproximación de la matriz tangente de presión 

      Rossi, Riccardo; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio; Cotela Dalmau, Jordi; Del Pin, F. (Universitat Politècnica de Catalunya. CIMNE, 2011-01)
      Article
      Open Access
      La interacción de los fluidos con las estructuras de su entorno es un desafío clásico para las técnicas numéricas. El objetivo de este trabajo es doble: en primer lugar se proporciona una explicación teórica simple de los ...
    • Migration of a generic multi-physics framework to HPC environments 

      Dadvand, Pooyan; Rossi, Riccardo; Gil, Marisa; Martorell Bofill, Xavier; Cotela Dalmau, Jordi; Juanpere, E.; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (2011)
      Conference report
      Open Access
      Creating a highly parallelizable code is a challenge and development for distributed memory machines (DMMs) can be very different form developing a serial code in term of algorithms and structure. For this reason, many ...
    • Migration of a generic multi-physics framework to HPC environments 

      Dadvand, Pooyan; Rossi, Riccardo; Gil, Marisa; Martorell Bofill, Xavier; Cotela Dalmau, Jordi; Juanpere, E.; Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio (Elsevier, 2013-07)
      Article
      Open Access
      Creating a highly parallelizable code is a challenge specially for distributed memory machines (DMMs). Moreover, algorithms and data structures suitable for these platforms can be very different from the ones used in serial ...
    • Numerical wind tunnel for aerodynamic and aeroelastic characterization of bridge deck sections 

      Scotta, Roberto; Lazzari, Massimiliano; Stecca, Enrico; Cotela Dalmau, Jordi; Rossi, Riccardo (2016-04)
      Article
      Restricted access - publisher's policy
      The aim of the present study is to propose a reliable engineering procedure to analyze bridges subjected to wind loads by-passing the expensive wind tunnel tests thanks to numerical simulations. These exploit Kratos, a ...
    • Parallel adaptive mesh refinement for incompressible flow problems 

      Rossi, Riccardo; Cotela Dalmau, Jordi; Lafontaine, Nelson Maireni; Dadvand, Pooyan; Idelsohn Barg, Sergio Rodolfo (Elsevier, 2013-07)
      Article
      Open Access
      The present article describes a simple element-driven strategy for the conforming refinement of simplicial finite element meshes in a distributed environment. The proposed algorithm is effective both for local adaptive ...
    • Parallel adaptive mesh refinement for incompressible flow problems 

      Cotela Dalmau, Jordi; Rossi, Riccardo; Oñate Ibáñez de Navarra, Eugenio; Lafontaine, Nelson Maireni; Idelsohn Barg, Sergio Rodolfo (2011)
      Conference report
      Open Access
      We present an algorithm for the solution of the incompressible Navier- Stokes equations combined with local refinement of the mesh based on an error estimation. Our solution strategy is based on well-established CFD ...
    • Scalable system for large unstructured mesh simulation 

      Pasenau, Miguel; Dadvand, Pooyan; Rossi, Riccardo; Cotela Dalmau, Jordi; Coll, Abel; Oñate Ibáñez de Navarra, Eugenio (Barcelona Supercomputing Center, 2011)
      Conference report
      Open Access
      Dealing with large simulation is a growing challenge. Ideally for the wellparallelized software prepared for high performance, the problem solving capability depends on the available hardware resources. But in practice ...
    • Simulation of two- and three-dimensional viscoplastic flows using adaptive mesh refinement 

      Cotela Dalmau, Jordi; Rossi, Riccardo; Larese De Tetto, Antonia (John Wiley & Sons, 2017-05-26)
      Article
      Open Access
      This paper presents a finite element solver for the simulation of steady non-Newtonian flow problems, using a regularized Bingham model, with adaptive mesh refinement capabilities. The solver is based on a stabilized ...