Browsing by Author "Jofre Cruanyes, Lluís"
Now showing items 1-20 of 53
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A 3-D volume-of-fluid advection method based on cell-vertex velocities for unstructured meshes
Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Castro González, Jesús; Oliva Llena, Asensio (Elsevier, 2014-05-01)
Article
Restricted access - publisher's policyA new geometrical Volume-of-Fluid (VOF) method for capturing interfaces on three-dimensional (3-D) Cartesian and unstructured meshes is introduced. The method reconstructs interfaces as first- and second-order piecewise ... -
A characteristic length scale for density gradients in supercritical monocomponent flows near pseudoboiling
Jofre Cruanyes, Lluís (2020-12)
Research report
Open Access -
A coupled volume-of-fluid/level-set method for simulation of two-phase flows in unstructured meshes
Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Jofre Cruanyes, Lluís; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Elsevier, 2016-01)
Article
Open AccessThis paper presents a methodology for simulation of two-phase flows with surface tension in the framework of unstructured meshes, which combines volume-of-fluid with level-set methods. While the volume-of-fluid transport ... -
A finite-volume/level-set interface capturing method for unstructured grids: Simulations of bubbles rising through viscous liquids
Balcázar Arciniega, Néstor; Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Castro González, Jesús; Oliva Llena, Asensio (WIT Press, 2014)
Conference report
Open AccessA numerical method is developed for simulating two-phase flows with moving inter-phase boundaries, which is integrated in a finite-volume framework on collocated unstructured grids of arbitrary element type. The location, ... -
A finite-volume/level-set method for simulating two-phase flows on unstructured grids
Balcázar Arciniega, Néstor; Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Castro González, Jesús; Rigola Serrano, Joaquim (2014-09)
Article
Restricted access - publisher's policyThe conservative level-set method for capturing the interface between two fluids is combined with a variable density projection scheme to simulate incompressible two-phase flows on unstructured meshes. All equations are ... -
A framework for characterizing structural uncertainty in large-eddy simulation closures
Jofre Cruanyes, Lluís (springer-Verlag, 2018)
Article
Open AccessMotivated by the sizable increase of available computing resources, large-eddy simulation of complex turbulent flow is becoming increasingly popular. The underlying filtering operation of this approach enables to represent ... -
A framework for estimating epistemic uncertainty in LES closures
Jofre Cruanyes, Lluís (2016)
Research report
Open Access -
A free surface model for the numerical simulation of oscillating water column systems
Schillaci, Eugenio; Balcázar Arciniega, Néstor; Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Castro González, Jesús (International Association for Computational Mechanics (IACM), 2014)
Conference report
Restricted access - publisher's policyThe aim of this work is to propose and validate a numerical model that represents the hydrodynamic behavior of an Oscillating Water Column (OWC) device, that has been shown to be one of the most promising ways to extract ... -
A level-set aided single-phase model for the numerical simulation of free-surface flow on unstructured meshes
Schillaci, Eugenio; Jofre Cruanyes, Lluís; Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (Elsevier, 2016-11-25)
Article
Open AccessA new single-phase scheme for the numerical simulation of free-surface problems on 3-D unstructured meshes is presented. The flow field is obtained from the discrete solution of the incompressible Navier-Stokes equations, ... -
A low-dissipation convection scheme for the stable discretization of turbulent interfacial flow
Schillaci, Eugenio; Jofre Cruanyes, Lluís; Balcázar Arciniega, Néstor; Antepara Zambrano, Óscar; Oliva Llena, Asensio (Elsevier, 2017-08-10)
Article
Open AccessThis paper analyzes a low-dissipation discretization for the resolution of immiscible, incompressible multiphase flow by means of interface-capturing schemes. The discretization is built on a three-dimensional, unstructured ... -
A multiple marker level-set method for simulation of bubbly flows
Balcázar Arciniega, Néstor; Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Castro González, Jesús; Oliva Llena, Asensio (International Association for Computational Mechanics (IACM), 2014)
Conference report
Restricted access - publisher's policyA multiple marker level-set (MLS) method is introduced for Direct Numerical Simulation of bubbles and droplets, which is integrated in a finite-volume framework on collocated unstructured grids of arbitrary element type. ... -
A PLIC-VOF implementation on parallel 3D unstructured meshes
Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Castro González, Jesús; Oliva Llena, Asensio (2010)
Conference lecture
Restricted access - publisher's policyThe numerical simulation of interfacial and free surface ows is a vast and interesting topic in the areas of engineering and fundamental physics, such as the study of liquid-gas interfaces, formation of droplets, bubbles ... -
A scalable geometric multigrid method for non-symmetric linear systems arising from elliptic equations
Jofre Cruanyes, Lluís (2015)
Research report
Open Access -
A scalable geometric multigrid solver for nonsymmetric elliptic systems with application to variable-density flows
Jofre Cruanyes, Lluís (2018)
Article
Open AccessA geometric multigrid algorithm is introduced for solving nonsymmetric linear systems resulting from the discretization of the variable density Navier-Stokes equations on nonuniform structured rectilinear grids and ... -
Bi-fidelity approximation for uncertainty quantification and sensitivity analysis of irradiated particle-laden turbulence
Fairbanks, Hillary R.; Jofre Cruanyes, Lluís (2020-02-01)
Article
Open AccessParticle-laden turbulent flows subject to radiative heating are relevant in many applications, for example concentrated solar power receivers. Efficient and accurate simulations provide valuable insights and enable ... -
Characterization of structural uncertainty in LES of a round jet
Jofre Cruanyes, Lluís (2018)
Research report
Open Access -
Conservative discretization of multiphase flow with high density ratios
Jofre Cruanyes, Lluís; Lehmkuhl Barba, Oriol; Balcázar Arciniega, Néstor; Castro González, Jesús; Rigola Serrano, Joaquim; Oliva Llena, Asensio (WIT Press, 2014)
Conference report
Open AccessThe computation of multiphase flows presenting high density ratios, where the fluids involved are considered immiscible, are of great importance for fundamental physics and industrial applications; such as the study of ... -
Data-driven dimensional analysis of heat transfer in irradiated particle-laden turbulent flow
Jofre Cruanyes, Lluís (2020)
Article
Open AccessThe study of thermal radiation interacting with particle-laden turbulence is of great importance in a wide range of scientific and engineering applications. The fundamental and applied study of such systems is challenging ... -
Dimension reduction of thermo-fluid mechanisms in irradiated particle-laden turbulence
Jofre Cruanyes, Lluís (2019)
Research report
Open Access -
Direct numerical simulation of the flow over a spherical bubble in a turbulent pipe flow
Jofre Cruanyes, Lluís; Balcázar Arciniega, Néstor; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Castro González, Jesús (International Association for Computational Mechanics (IACM), 2014)
Conference report
Restricted access - publisher's policyThis work aims at investigating, by means of a direct numerical simulation, the flow over a clean spherical bubble fixed on the axis of a turbulent pipe flow. The simulation is performed by means of a parallel unstructured ...