Exploració per autor "Houzeaux, Guillaume"Més informació

Ara es mostren els items 27-46 de 87

    • Concomitant respiratory failure can impair myocardial oxygenation in patients with acute cardiogenic shock supported by VA-ECMO 

      Prisco, Anthony R.; Aguado Sierra, Jazmín; Butakoff, Constantine; Vázquez, Mariano; Houzeaux, Guillaume; Eguzkitza, Beatriz; Bartos, Jason A.; Yannopoulos, Demetris; Raveendran, Ganesh; Holm, Mikayle; Iles, Tinen; Mahr, Claudius; Iaizzo, Paul A. (Springer Link, 2021)
      Article
      Accés obert
      Venous-arterial extracorporeal membrane oxygenation (VA-ECMO) treatment for acute cardiogenic shock in patients who also have acute lung injury predisposes development of a serious complication called “north-south syndrome” ...

    • Coupled electromechanical model of the heart: Parallel finite element formulation 

      Lafortune, Pierre; Aris, Ruth; Vázquez, Mariano; Houzeaux, Guillaume (2012-01)
      Article
      Accés restringit per política de l'editorial
      In this paper, a highly parallel coupled electromechanical model of the heart is presented and assessed. The parallel-coupled model is thoroughly discussed, with scalability proven up to hundreds of cores. This work focuses ...

    • Development of the conditional moment closure with a multi-code approach in the frame of Large Eddy Simulations 

      Pérez Sánchez, Eduardo Javier; Mira Martínez, Daniel; Lehmkuhl Barba, Oriol; Houzeaux, Guillaume (ECM, 2021)
      Comunicació de congrés
      Accés obert
      The Conditional Moment Closure (CMC), devised for turbulent combustion modelling, was implemented in the multiphysics code Alya, based on the Finite Element Method (FEM), in the frame of Large Eddy Simulations (LES) for ...

    • Dynamic resource allocation for efficient parallel CFD simulations 

      Houzeaux, Guillaume; Badia Sala, Rosa Maria; Borrell Pol, Ricard; Dosimont, Damien; Ejarque Artigas, Jorge; García Gasulla, Dario; López Herrero, Víctor (Elsevier, 2022-09-15)
      Article
      Accés restringit per política de l'editorial
      CFD users of supercomputers usually resort to rule-of-thumb methods to select the number of subdomains (partitions) when relying on MPI-based parallelization. One common approach is to set a minimum number of elements or ...

    • Dynamics of Airflow in a Short Inhalation 

      Bates, Alister J.; Doorly, Denis J.; Cetto, Raul; Calmet, Hadrien; Gambaruto, Alberto; Tolley, Neil; Houzeaux, Guillaume; Schroter, Robert (The Royal Society, 2015-01-06)
      Article
      Accés obert
      During a rapid inhalation, such as a sniff, the flowin the airways accelerates and decays quickly. The consequences for flow development and convective transport of an inhaled gas were investigated in a subject geometry ...

    • Effects of detailed ventricular anatomy on the blood flow 

      Sacco, Federica; Paun, Bruno; Jowkar, Mohammad; Houzeaux, Guillaume; Vázquez, Mariano; Aguado-Sierra, Jazmin; Butakoff, Constantine (Barcelona Supercomputing Center, 2015-05-05)
      Text en actes de congrés
      Accés obert
      The presented study is a preliminary test and analysis of the role of trabeculae and papillary muscles in the hemodynamics of the left ventricle (LV).

    • ETP4HPC’s SRA 5 strategic research agenda for High-Performance Computing in Europe 2022: European HPC research priorities 2023-2027 

      Carpenter, Paul Matthew; Casas, Marc; Unsal, Osman Sabri; Radojkovic, Petar; Martorell Bofill, Xavier; Miranda, Alberto; Guitart Fernández, Jordi; Corbalán González, Julita; Peña Monferrer, Antonio José; Bautista Gomez, Leonardo Arturo; Vázquez García, Miguel; Beltran Querol, Vicenç; Queralt Calafat, Anna; Nou Castell, Ramon; Borrell Pol, Ricard; Houzeaux, Guillaume; Serradell Maronda, Kim; Carrera Pérez, David; García Sáez, Artur; Puchol García, Carlos (2022-09)
      Report de recerca
      Accés obert
      This document feeds research and development priorities devel-oped by the European HPC ecosystem into EuroHPC’s Research and Innovation Advisory Group with an aim to define the HPC Technology research Work Programme and ...

    • Evaluating the roles of detailed endocardial structures on right ventricular haemodynamics by means of CFD simulations 

      Sacco, Federica; Paun, Bruno; Lehmkuhl Barba, Oriol; Iles, Tinen L.; Iaizzo, Paul A.; Houzeaux, Guillaume; Vázquez, Mariano; Butakoff, Constantine; Aguado-Sierra, Jazmin (Wiley, 2018-09)
      Accés obert
      Computational modelling plays an important role in right ventricular (RV) haemodynamic analysis. However, current approaches use smoothed ventricular anatomies. The aim of this study is to characterise RV haemodynamics ...

    • Extension of the parallel Sparse Matrix Vector Product (SpMV) for the implicit coupling of PDEs on non-matching meshes 

      Houzeaux, Guillaume; Borrell, Ricard; Cajas García, Juan Carlos; Vázquez, Mariano (Elsevier, 2018-09-15)
      Article
      Accés obert
      The Sparse Matrix Vector Product (SpMV) is one of the main operations of iterative solvers, and, in a parallel context, it is also the siege of point-to-point communications between the neighboring MPI processes. The ...

    • Fluid-structure interaction based on HPC multicode coupling 

      Cajas García, Juan Carlos; Houzeaux, Guillaume; Vázquez, Mariano; Garcia Gasulla, Marta; Casoni Rero, Eva; Calmet, Hadrien; Artigues, Antoni; Borrell Pol, Ricard; Lehmkuhl Barba, Oriol; Pastrana Maldonado, Daniel; Yáñez, David; Pons, Ramon; Martorell Lopez, Jordi (2018)
      Article
      Accés restringit per política de l'editorial
      The fluid-structure interaction (FSI) problem has received great attention in the last few years, mainly because it is present in many physical systems, industrial applications, and almost every biological system. In the ...

    • Fluid–structure interaction analysis of eccentricity and leaflet rigidity on thrombosis biomarkers in bioprosthetic aortic valve replacements 

      Oks, David; Samaniego Alvarado, Cristóbal; Houzeaux, Guillaume; Butakoff, Constantine; Vázquez, Mariano (John Wiley & sons, 2022-12)
      Article
      Accés obert
      This work intends to study the effect of aortic annulus eccentricity and leaflet rigidity on the performance, thrombogenic risk and calcification risk in bioprosthetic aortic valve replacements (BAVRs). To address these ...

    • Fluid–structure interaction of human nasal valves under sniff conditions and transport of inhaled aerosols: A numerical study 

      Calmet, Hadrien; Santiago, Alfonso; Cajas, Juan Carlos; Langdon, Cristobal; Eguzkitza, Beatriz; Houzeaux, Guillaume (Elsevier, 2022)
      Article
      Accés restringit per política de l'editorial
      The nasal valve is the narrowest part of the nasal airway which is responsible for the largest part of the nasal resistance. Even little changes in the aperture can affect the flow downstream through the nose significantly. ...

    • From imaging to simulation: a framework applied to simulate the blood flow in the carotids 

      Arís Sánchez, Ruth; Mani, Venkatesh; Dyvorne, Hadrien A.; Jowkar, M.; Santiago, A.; Houzeaux, Guillaume; Fayad, Zahi; Vázquez, Mariano (Barcelona Supercomputing Center, 2015-05-05)
      Text en actes de congrés
      Accés obert
      In this work we present a methodology to extract information from medical imaging and use it for hemodynamical simulation in arteries. Based on in-vivo magnetic resonance images (MRI), the velocity of the blood flow has ...

    • Heat loss prediction of a confined premixed jet flame using a conjugate heat transfer approach 

      Gövert, S.; Mira Martínez, Daniel; Zavala-Ake, M.; Kok, J.B.W.; Vázquez, Mariano; Houzeaux, Guillaume (Elsevier, 2017-04)
      Article
      Accés obert
      The presented work addresses the investigation of the heat loss of a confined turbulent jet flame in a lab-scale combustor using a conjugate-heat transfer approach and large-eddy simulation. The analysis includes the ...

    • Heat Transfer Effects on a Fully Premixed Methane Impinging Flame 

      Mira Martínez, Daniel; Zavala, Miguel; Avila, Matías; Owen, Herbert; Cajas García, Juan Carlos; Vázquez, Mariano; Houzeaux, Guillaume (Springer, 2016-01-09)
      Article
      Accés obert
      A numerical assessment of different thermal conditions for an impinging flame configuration is investigated using large-eddy simulation. The cases of study correspond to a turbulent methane flame at equivalence ratio ER = ...

    • Heterogeneous CPU/GPU co-execution of CFD simulations on the POWER9 architecture: Application to airplane aerodynamics 

      Borrell, Ricard; Dosimont, Damien; Garcia Gasulla, Marta; Houzeaux, Guillaume; Lehmkuhl Barba, Oriol; Mehta, Vishal; Owen, Herbert; Vázquez, Mariano; Oyarzun Altamirano, Guillermo (Elsevier, 2020-06)
      Article
      Accés obert
      High fidelity Computational Fluid Dynamics simulations are generally associated with large computing requirements, which are progressively acute with each new generation of supercomputers. However, significant research ...

    • High-Performance Computing: Do’s and Dont’s 

      Houzeaux, Guillaume; Borrell, Ricard; Fournier, Yvan; Garcia-Gasulla, Marta; Göbbert, Jens H.; Hachem, Elie; Mehta, Vishal; Mesri, Youssef; Owen, Herbert; Vázquez, Mariano (InTech, 2018-02-14)
      Capítol de llibre
      Accés obert
      Computational fluid dynamics (CFD) is the main field of computational mechanics that has historically benefited from advances in high-performance computing. High-performance computing involves several techniques to make a ...

    • HPC compact quasi-Newton algorithm for interface problems 

      Santiago, Alfonso; Zavala Aké, Miguel; Borrell Pol, Ricard; Houzeaux, Guillaume; Vázquez, Mariano (Elsevier, 2020)
      Article
      Accés obert
      In this work we present a robust interface coupling algorithm called Compact Interface quasi-Newton (CIQN). It is designed for computationally intensive applications using an MPI multi-code partitioned scheme. The algorithm ...

    • HPC-enabling technologies for high-fidelity combustion simulations 

      Mira Martínez, Daniel; Pérez Sánchez, Eduardo J.; Borrell Pol, Ricard; Houzeaux, Guillaume (Elsevier, 2022)
      Article
      Accés obert
      With the increase in computational power in the last decade and the forthcoming Exascale supercomputers, a new horizon in computational modelling and simulation is envisioned in combustion science. Considering the multiscale ...

    • Innovative algorithm for particles transport in a fluid 

      Olivares, Edgar; Houzeaux, Guillaume (Barcelona Supercomputing Center, 2015-05-05)
      Accés obert
      Particles transport in a fluid simulations have plenty of applications in the medicine or different fields of the engineering; from drug delivery simulation in the respiratory system to the friction of a car’s break with ...