Ara es mostren els items 69-87 de 87

    • Scientific Big Data Visualization: a Coupled Tools Approach 

      Artigues, Antoni; Cucchietti, Fernando; Tripiana, Carlos; Vicente, David; Calmet, Hadrien; Marín, Guillermo; Houzeaux, Guillaume; Vázquez, Mariano (South Ural State University (Chelyabinsk, Russia), 2015-02)
      Article
      Accés obert
      We designed and implemented a parallel visualisation system for the analysis of large scale time-dependent particle type data. The particular challenge we address is how to analyse a high performance computation style ...
    • SHAPE Project Vortex Bladeless: Parallel multi-code coupling for Fluid-Structure Interaction in Wind Energy Generation 

      Cajas García, Juan Carlos; Houzeaux, Guillaume; Yáñez, David J.; Mier-Torrecilla, Mónica (2016)
      Report de recerca
      Accés obert
      Vortex-Bladeless is a Spanish SME whose objective is to develop a new concept of wind turbine without blades called Vortex or vorticity wind turbine. This design represents a new paradigm in wind energy and aims to eliminate ...
    • Simulations of moist convection by a variational multiscale stabilized finite element method 

      Marras, Simone; Moragues, Margarida; Vázquez, Mariano; Jorba Casellas, Oriol; Houzeaux, Guillaume (2013-11-01)
      Article
      Accés restringit per política de l'editorial
      A variational multiscale stabilized finite element scheme is presented for the solution of moist atmospheric flows. The fully compressible Euler equations are coupled to a system of three advection equations that model the ...
    • Study of the Wall Thermal Condition Effect in a Lean-Premixed Downscaled Can Combustor Using Large-Eddy Simulation 

      Mira Martínez, Daniel; Vázquez, Mariano; Houzeaux, Guillaume; Gövert, Simon; Kok, Jim W.B.; Mahiques, E.I.; Panek, Lukasz (American Society of Mechanical Engineers, 2016-06-13)
      Comunicació de congrés
      Accés obert
      The primary purpose of this study is to evaluate the ability of LES, with a turbulent combustion model based on steady flamelets, to predict the flame stabilization mechanisms in an industrial can combustor at full load ...
    • Subdividing triangular and quadrilateral meshes in parallel to approximate curved geometries 

      Gargallo-Peiró, Abel; Houzeaux, Guillaume; Roca, Xevi (Elsevier, 2017)
      Article
      Accés obert
      A parallel distributed approach to refine a mesh while preserving the curvature of a target geometry is presented. Our approach starts by generating a coarse linear mesh of the computational domain. Second, the former ...
    • Subject-variability effects on micron particle deposition in human nasal cavities 

      Calmet, Hadrien; Kleinstreuer, Clement; Houzeaux, Guillaume; Kolanjiyil, Arun Varghese; Lehmkuhl Barba, Oriol; Olivares, Edgar; Vázquez, Mariano (Elsevier, 2018-01)
      Article
      Accés obert
      Validated computer simulations of the airflow and particle dynamics in human nasal cavities are important for local, segmental and total deposition predictions of both inhaled toxic and therapeutic particles. Considering ...
    • The Effect of Partial Premixing and Heat Loss on the Reacting Flow Field Prediction of a Swirl Stabilized Gas Turbine Model Combustor 

      Gövert, Simon; Mira Martínez, Daniel; Kok, Jim B. W.; Vázquez, Mariano; Houzeaux, Guillaume (Springer Verlag, 2018-03)
      Article
      Accés obert
      This work addresses the prediction of the reacting flow field in a swirl stabilized gas turbine model combustor using large-eddy simulation. The modeling of the combustion chemistry is based on laminar premixed flamelets ...
    • The Fixed-Mesh ALE approach for the numerical approximation of flows in moving domains 

      Codina, Ramon; Houzeaux, Guillaume; Coppola Owen, Ángel H.; Baiges Aznar, Joan (2008-07-30)
      Article
      Accés obert
      In this paper we propose a method to approximate flow problems in moving domains using always a given grid for the spatial discretization, and therefore the formulation to be presented falls within the category of ...
    • The OTree: multidimensional indexing with efficient data sampling for HPC 

      Cugnasco, Cesare; Calmet, Hadrien; Santamaria Mateu, Pol; Sirvent Pardell, Raül; Eguzkitza, Ane Beatriz; Houzeaux, Guillaume; Becerra Fontal, Yolanda; Torres Viñals, Jordi; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés obert
      Spatial big data is considered an essential trend in future scientific and business applications. Indeed, research instruments, medical devices, and social networks generate hundreds of petabytes of spatial data per year. ...
    • Turbulent combustion modelling of a confined premixed jet flame including heat loss effects using tabulated chemistry 

      Gövert, Simon; Mira Martínez, Daniel; Kok, Jim B. W.; Vázquez, Mariano; Houzeaux, Guillaume (Elsevier, 2015-10-15)
      Article
      Accés obert
      The present work addresses the coupling of a flamelet database, to a low-Mach approximation of the Navier–Stokes equations using scalar controlling variables. The model is characterized by the chemistry tabulation based ...
    • Unveiling WARIS Code, a Parallel and Multi-purpose FDM Framework 

      de la Cruz, Raúl; Hanzich, Mauricio; Folch, Arnau; Houzeaux, Guillaume; Cela, José Maria (Springer, 2014-10-31)
      Text en actes de congrés
      Accés obert
      WARIS is an in-house multi-purpose framework focused on solving scientific problems using Finite Difference Methods as numerical scheme. Its framework was designed from scratch to solve in a parallel and efficient way Earth ...
    • Validation and Sensitivity analysis for a nasal spray deposition computational model 

      Calmet, Hadrien; Oks, David; Santiago, Alfonso; Houzeaux, Guillaume; Le Corfec, Antoine; Deruyver, Laura; Rigaut, Clement; Lambert, Pierre; Haut, Benoit; Goole, Jonathan (Elsevier, 2022)
      Article
      Accés restringit per política de l'editorial
      Validating numerical models against experimental models of nasal spray deposition is challenging since many aspects must be considered. That being said, it is a critical step in the product development process of nasal ...
    • Validation of tsunami numerical simulation models for an idealized coastal industrial site 

      Watanabe, Masashi; Arikawa, Taro; Kihara, Naoto; Tsurudome, Chiaki; Hosaka, Koichi; Houzeaux, Guillaume (World Scientific Publishing, 2022)
      Article
      Accés obert
      Numerous tsunami numerical models have been proposed, but their prediction accuracies have not been directly compared. For quantifying the modeling uncertainties, the authors statistically analyzed the prediction results ...
    • Validations of the radiation transport module NEUTRO: A deterministic solver for the neutron transport equation 

      Soba, Alejandro; Cazado, Mauricio E.; Houzeaux, Guillaume; Gutierrez Milla, Albert; Mantsinen, Mervi J.; Saez Pous, Xavier (Elsevier, 2021)
      Article
      Accés obert
      We present significant improvements and validations of a deterministic neutron transport code (NEUTRO) dedicated to solving the Boltzmann Transport Equation. The code is integrated as a module in the Alya software package ...
    • Ventricular anatomical complexity and sex differences impact predictions from electrophysiological computational models 

      Gonzalez Martin, Pablo; Sacco, Federica; Butakoff, Constantine; Doste, Ruben; Bederian, Carlos; Houzeaux, Guillaume; Vázquez, Mariano; Aguado Sierra, Jazmín (Public Library of Science, 2023)
      Article
      Accés obert
      The aim of this work was to analyze the influence of sex hormones and anatomical details (trabeculations and false tendons) on the electrophysiology of healthy human hearts. Additionally, sex- and anatomy-dependent effects ...
    • Vortex Induced Vibration (VIV) of circular cylinders at high Reynolds numbers 

      Pastrana Maldonado, Daniel; Cajas García, Juan Carlos; Lehmkuhl Barba, Oriol; Rodriguez, I.; Houzeaux, Guillaume (Barcelona Supercomputing Center, 2017-05-04)
      Text en actes de congrés
      Accés obert
      In this contribution, preliminary results on the study of the VIV at high Reynolds numbers are presented. First, a validation of the code and the turbulent LES WALE formulation in conjunction with a low-dissipative ...
    • Vortex induced vibrations of a pivoted finite height cylinder at low Reynolds number 

      Cajas García, Juan Carlos; Pastrana Maldonado, Daniel; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Houzeaux, Guillaume; Vázquez, Mariano; Treviño Treviño, Cesar (2021-06-03)
      Article
      Accés obert
      The vortex induced vibrations (VIVs) of a pivoted cylinder with finite height have been numerically investigated. A mathematical model is introduced and described, and the resulting equations are numerically solved for low ...
    • Wakes and instabilities of static and freely vibrating cylinders 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Pastrana Maldonado, Daniel; Cajas García, Juan Carlos; Houzeaux, Guillaume (Springer, 2019)
      Text en actes de congrés
      Accés obert
      The flow around static and freely vibrating cylinders are of interest in understanding different phenomena encountered in many practical applications.
    • Wall‐modeled large‐eddy simulation in a finite element framework 

      Owen, Herbert; Chrysokentis, Georgios; Avila, Matias; Mira Martínez, Daniel; Houzeaux, Guillaume; Cajas, Juan Carlos; Lehmkuhl Barba, Oriol (Wiley, 2020-01)
      Article
      Accés obert
      This work studies the implementation of wall modeling for large‐eddy simulation in a finite element context. It provides a detailed description of how the approach used by the finite volume and finite differences communities ...