Exploració per autor "Houzeaux, Guillaume"
Ara es mostren els items 40-59 de 87
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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 obertThe 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 obertA 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 obertHigh 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 obertComputational 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 obertIn 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 obertWith 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 obertParticles 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 ... -
Large-eddy simulations of the vortex-induced vibration of a low mass ratio two-degree-of-freedom circular cylinder at subcritical Reynolds numbers
Pastrana Maldonado, Daniel; Cajas García, Juan Carlos; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Houzeaux, Guillaume (Elsevier, 2018-09)
Article
Accés obertThe vortex induced vibration phenomenon of a low mass ratio () two-degree-of-freedom circular cylinder at subcritical Reynolds numbers ( 5300, 11,000) has been investigated by means of large-eddy simulations. A low-dissipative ... -
Large-scale CFD simulations of the transitional and turbulent regime for the large human airways during rapid inhalation
Calmet, Hadrien; Gambaruto, Alberto M.; Bates, Alister J.; Vázquez, Mariano; Houzeaux, Guillaume; Doorly, Denis J. (Elsevier, 2016-02-01)
Article
Accés obertThe dynamics of unsteady flow in the human large airways during a rapid inhalation were investigated using highly detailed large-scale computational fluid dynamics on a subject-specific geometry. The simulations were ... -
Left Ventricular Trabeculations Decrease the Wall Shear Stress and Increase the Intra-Ventricular Pressure Drop in CFD Simulations
Sacco, Federica; Paun, Bruno; Lehmkuhl Barba, Oriol; Iles, Tinen L.; Iaizzo, Paul A.; Houzeaux, Guillaume; Vázquez, Mariano; Butakoff, Constantine; Aguado-Sierra, Jazmin (Frontiers Media, 2018-04-30)
Article
Accés obertThe aim of the present study is to characterize the hemodynamics of left ventricular (LV) geometries to examine the impact of trabeculae and papillary muscles (PMs) on blood flow using high performance computing (HPC). ... -
Local preconditioning and variational multiscale stabilization for Euler compressible steady flow
Moragues, Margarida; Vázquez, Mariano; Houzeaux, Guillaume (Elsevier, 2016)
Article
Accés obertThis paper introduces a preconditioned variational multiscale stabilization (P-VMS) method for compressible flows. In this introductory paper we focus on inviscid flow and steady state problems. The Euler equations are ... -
MPI+X: task-based parallelisation and dynamic load balance of finite element assembly
Garcia, Marta; Houzeaux, Guillaume; Ferrer, Roger; Artigues, Antoni; López, Victor; Labarta Mancho, Jesús José; Vázquez, Mariano (Taylor & Francis, 2019-05)
Article
Accés obertThe main computing phases of numerical methods for solving partial differential equations are the algebraic system assembly and the iterative solver. This work focuses on the first task, in the context of a hybrid MPI+X ... -
MPI+X: task-based parallelization and dynamic load balance of finite element assembly
Garcia-Gasulla, Marta; Houzeaux, Guillaume; Ferrer, Roger; Artigues, Antoni; López, Victor; Labarta Mancho, Jesús José; Vázquez, Mariano (Taylor & Francis, 2018)
Article
Accés obertThe main computing tasks of a finite element code(FE) for solving partial differential equations (PDE's) are the algebraic system assembly and the iterative solver. This work focuses on the first task, in the context of ... -
Nasal sprayed particle deposition in a human nasal cavity under different inhalation conditions
Calmet, Hadrien; Inthavong, Kiao; Eguzkitza, Beatriz; Lehmkuhl Barba, Oriol; Houzeaux, Guillaume (Public Library of Science, 2019-09-06)
Article
Accés obertDeposition of polydisperse particles representing nasal spray application in a human nasal cavity was performed under transient breathing profiles of sniffing, constant flow, and breath hold. The LES turbulence model was ... -
Numbering along advection for Gauss-Seidel and bidiagonal preconditioners
Córdoba, Paula; Houzeaux, Guillaume (Barcelona Supercomputing Center, 2015-05-05)
Text en actes de congrés
Accés obertDomain decomposition methods (DDM) are often chosen to precondition sparse linear systems of equations, as they are famous to well-improve the convergence of iterative solvers. But at the same time, they are difficult to ... -
Numerical characterization of a technically premixed hydrogen flame under conditions close to flashback
Mira Martínez, Daniel; Lehmkuhl Barba, Oriol; Both, Ambrus; Stathopoulos, Panagiotis; Tanneberger, Tom; Reichel, Thoralf G.; Paschereit, Christian Oliver; Vázquez, Mariano; Houzeaux, Guillaume (Springer, 2020-03)
Article
Accés obertThis work presents a numerical study of a technically premixed swirling combustor with central air injection at conditions close to flashback using large-eddy simulation with flamelet modelling. This burner has the ... -
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)
Capítol de llibre
Accés restringit per política de l'editorialAs 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 formation of Taylor-Görtler structures in the vortex induced vibration phenomenon
Pastrana Maldonado, Daniel; Rodríguez Pérez, Ivette María; Cajas García, Juan Carlos; Lehmkuhl Barba, Oriol; Houzeaux, Guillaume (2020-06-01)
Article
Accés obertIn this work, the three-dimensional structure of the boundary layer in the context of the vortex induced vibration of a circular cylinder is presented and investigated for the first time. Large-eddy simulations of a low ... -
On the role of a centrifugal instability in the vortex-induced vibration of a two-degrees of freedom circular cylinder at moderate Reynolds numbers
Pastrana, Daniel; Cajas García, Juan Carlos; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Vázquez, Mariano; Houzeaux, Guillaume (2018)
Text en actes de congrés
Accés restringit per política de l'editorialIn this work, the formation and role of a centrifugal instability in the VIV phenomenon at moderate Reynolds numbers are investigated for the ¿rst time. Large eddy simulations of a low mass ratio (m = 2.6) two-degree-of-freedom ... -
Parallel embedded boundary methods for fluid and rigid-body interaction
Samaniego, Cristóbal; Houzeaux, Guillaume; Samaniego, Esteban; Vázquez, Mariano (Elsevier, 2015-06-15)
Article
Accés obertThe implementations of an updated body-fitted and a non body-fitted method to deal with the interaction of a fluid and a rigid body are described. The physics of the fluid is modeled by the incompressible Navier-Stokes ...