A coupled volume-of-fluid/level-set method for simulation of two-phase flows on unstructured meshes

N Balcázar, O Lehmkuhl, L Jofre, J Rigola, A Oliva - Computers & Fluids, 2016 - Elsevier
This 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 …

A finite-volume/level-set method for simulating two-phase flows on unstructured grids

N Balcázar, L Jofre, O Lehmkuhl, J Castro… - International journal of …, 2014 - Elsevier
The 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 …

Flow and turbulent structures around simplified car models

DE Aljure, O Lehmkuhl, I Rodríguez, A Oliva - Computers & Fluids, 2014 - Elsevier
External car aerodynamics study has great importance in overall car efficiency and ride
stability, being a key element in successful automotive design. The flow over car geometries …

Level-set simulations of buoyancy-driven motion of single and multiple bubbles

N Balcázar, O Lehmkuhl, L Jofre, A Oliva - … Journal of Heat and Fluid Flow, 2015 - Elsevier
This paper presents a numerical study of buoyancy-driven motion of single and multiple
bubbles by means of the conservative level-set method. First, an extensive study of the …

A 3-D Volume-of-Fluid advection method based on cell-vertex velocities for unstructured meshes

L Jofre, O Lehmkuhl, J Castro, A Oliva - Computers & Fluids, 2014 - Elsevier
A new geometrical Volume-of-Fluid (VOF) method for capturing interfaces on three-
dimensional (3-D) Cartesian and unstructured meshes is introduced. The method …

Numerical simulation of wind flow around a parabolic trough solar collector

AA Hachicha, I Rodríguez, J Castro, A Oliva - Applied energy, 2013 - Elsevier
The use of parabolic trough solar technology in solar power plants has been increased in
recent years. Such devices are located in open terrain and can be the subject of strong …

A multiple marker level-set method for simulation of deformable fluid particles

N Balcázar, O Lehmkuhl, J Rigola, A Oliva - International Journal of …, 2015 - Elsevier
A novel multiple marker level-set method is introduced for Direct Numerical Simulation of
deformable fluid particles (bubbles and droplets), which is integrated in a finite-volume …

Drain water heat recovery storage-type unit for residential housing

S Torras, C Oliet, J Rigola, A Oliva - Applied Thermal Engineering, 2016 - Elsevier
The drain water heat recovery (DWHR) system is an interesting household technology to
reduce energy costs and environmental impact. The objective of the utilisation of these …

Fixed-grid numerical modeling of melting and solidification using variable thermo-physical properties–Application to the melting of n-Octadecane inside a spherical …

PA Galione, O Lehmkuhl, J Rigola, A Oliva - International Journal of Heat …, 2015 - Elsevier
A fixed-grid enthalpy model for unstructured meshes and explicit time integration schemes
(Galione et al., 2014) is here extended for taking into account the change in density and …

Parallel adaptive mesh refinement for large-eddy simulations of turbulent flows

O Antepara, O Lehmkuhl, R Borrell, J Chiva, A Oliva - Computers & Fluids, 2015 - Elsevier
In this paper a parallel adaptive mesh refinement (AMR) strategy for large eddy simulations
(LES) of turbulent flows is presented. The underlying discretization of the Navier–Stokes …