Now showing items 1-14 of 14

    • A 1D lumped-parameter/3D CFD approach for pressure drop in the aortic coarctation 

      Soudah Prieto, Eduardo; Bordoné, Maurizio; Dadvand, Pooyan; Rossi, Riccardo (Springer, 2012)
      Conference report
      Restricted access - publisher's policy
      Aortic Coarctation is a congenital constriction of the aorta that increases blood pressure above the constriction and hinders the flow below it. Based on a 3D surface mesh of a moderate thoracic coarctation, a high quality ...
    • A cut finite element method for the solution of the full-potential equation with an embedded wake 

      Davari, Masud; Rossi, Riccardo; Dadvand, Pooyan; Lopez, Iñigo; Wüchner, Roland (Springer, 2019-05)
      Article
      Open Access
      Potential flow solvers represent an appealing alternative for the simulation of non-viscous subsonic flows. In order to deliver accurate results, such techniques require prescribing explicitly the so called Kutta condition, ...
    • A framework for developing finite element codes for multi-disciplinary applications. 

      Dadvand, Pooyan (Universitat Politècnica de Catalunya, 2007-07-13)
      Doctoral thesis
      Open Access
      The world of computing simulation has experienced great progresses in recent years and requires more exigent multidisciplinary challenges to satisfy the new upcoming demands. Increasing the importance of solving ...
    • A robust algorithm for implicit description of immersed geometries within a background mesh 

      Baumgaertner, Daniel; Wolf, Johannes; Rossi, Riccardo; Dadvand, Pooyan; Wüchner, Roland (Springer, 2018-12)
      Article
      Open Access
      The paper presents a robust algorithm, which allows to implicitly describe and track immersed geometries within a background mesh. The background mesh is assumed to be unstructured and discretized by tetrahedrons. The ...
    • An efficient edge-based level set finite element method for free surface flow problems 

      Rossi, Riccardo; Larese De Tetto, Antonia; Dadvand, Pooyan; Oñate Ibáñez de Navarra, Eugenio (2013-02)
      Article
      Restricted access - publisher's policy
      We present an efficient technique for the solution of free surface flow problems using level set and a parallel edge-based finite elementmethod. An unstructured semi-explicit solution scheme is proposed. A custom data ...
    • Contribution to the fluid-structure interaction analysis of ultra-lightweight structures using an embedded approach 

      Baumgartner, Daniel; Wolf, Johannes; Rossi, Riccardo; Wüchner, Roland; Dadvand, Pooyan (2015)
      Book
      Open Access
      Designing large ultra-lightweight structures within a fluid flow, such as inflatable hangars in an atmospheric environment, requires an analysis of the naturally occurring fluid-structure interaction (FSI). To this end ...
    • 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 methods 

      Agelet de Saracibar Bosch, Carlos; Boman, Romain; Bussetta, Philippe; Cajas García, Juan Carlos; Cervera Ruiz, Miguel; Chiumenti, Michele; Coll Sans, Abel; Dadvand, Pooyan; Hernández Ortega, Joaquín Alberto; Houzeaux, Guillaume; Pasenau de Riera, Miguel; Ponthot, Jean Philippe (Wiley, 2016)
      Part of book or chapter of book
      Restricted access - publisher's policy
      As one of the results of an ambitious project, this handbook provides a well-structured directory of globally available software tools in the area of Integrated Computational Materials Engineering (ICME). The compilation ...
    • On the application of two-fluid flows solver to the casting problem 

      Kamran, Kazem; Rossi, Riccardo; Dadvand, Pooyan; Idelsohn Barg, Sergio Rodolfo (Springer, 2014)
      Part of book or chapter of book
      Restricted access - publisher's policy
      This book presents and discusses mathematical models, numerical methods and computational techniques used for solving coupled problems in science and engineering. It takes a step forward in the formulation and solution of ...
    • 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 ...
    • Robust volume mesh generation for non-watertight geometries 

      Coll Sans, Abel; Oñate Ibáñez de Navarra, Eugenio; Dadvand, Pooyan (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
      Book
      Open Access
      Nowadays large part of the time needed to perform a numerical simulation is spent in preprocessing, especially in the geometry cleaning operations and mesh generation. Furthermore, these operations are not easy to automatize ...
    • 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 ...
    • Three embedded techniques for finite element heat flow problem with embedded discontinuities 

      Davari, Masud; Rossi, Riccardo; Dadvand, Pooyan (2017-06)
      Article
      Open Access
      The present paper explores the solution of a heat conduction problem considering discontinuities embedded within the mesh and aligned at arbitrary angles with respect to the mesh edges. Three alternative approaches are ...