Browsing by Subject "Dinàmica de fluids computacional"
Now showing items 1-20 of 92
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A 3D numerical study of the bubble generation process into a bubble T-junction generator and its comparison with experimental data: part I
(2016)
Conference report
Open AccessThis work presents a 3D numerical study of the bubble generation process into a bubble generator obtained with the commercial Computational Fluid Dynamics solver ANSYS Fluent v15.0.7, and its comparison with experimental ... -
A Chimera method for the incompressible Navier-Stokes equations
(2014-05-30)
Article
Restricted access - publisher's policyThe Chimera method was developed three decades ago as a meshing simplification tool. Different components are meshed independently and then glued together using a domain decomposition technique to couple the equations ... -
A computational fluid dynamics study on hemodynamics for different locations of the distal anastomosis of a bypass nearby a collateral vessel in the femoropopliteal area
(John Wiley & Sons, Ltd, 2014-06-24)
Article
Restricted access - publisher's policyRevascularization of the femoropopliteal sector is often performed by the placement of a bypass. In this paper, we have studied the effects of hemodynamics on patency of the bypass for different positions of the distal ... -
A coupled volume-of-fluid/level-set method for simulation of two-phase flows in unstructured meshes
(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 ... -
Aerodynamical study of a photovoltaic solar tracker
(Universitat Politècnica de Catalunya, 2016-04-29)
Bachelor thesis
Open AccessState of the art. Literature review about CFD applied to solar panels. Analytic approach of the problem. Application of CFD analysis. Validation of the results. Discussion of the results. Improvements proposal. -
Algebraic implementation of a flux limiter for heterogeneous computing
(2018)
Conference report
Restricted access - publisher's policy -
A load balancing method for parallel genetic CFD optimizations
(2015)
Conference report
Restricted access - publisher's policyCFD optimizations are characterized by long and highly variable objective function evaluation times. The aim of this study is to improve the parallel performance using a new load balancing master-worker parallelization ... -
A multi-method approach towards understanding the pathophysiology of aortic dissections – the complementary role of in-silico, in-vitro and in-vivo information
(Springer, 2010)
Part of book or chapter of book
Restricted access - publisher's policyManagement and follow-up of chronic aortic dissections continues to be a clinical challenge due to progressive aortic dilatation. To predict dilatation, guidelines suggest follow-up of the aortic diameter. However, dilatation ... -
Anàlisi numèric mitjançant OpenFOAM d’un tractament tèrmic
(Universitat Politècnica de Catalunya, 2015-10)
Master thesis (pre-Bologna period)
Open AccessAquest treball pretén aprofundir en l’ús del programari lliure OpenFOAM com a eina útil i versàtil de simulació per Dinàmica de Fluids Computacional; tot centrant-se en l’àmbit de la transferència de calor i les diferents ... -
An efficient two-layer wall model for high Reynolds number large eddy simulation
(International Centre for Numerical Methods in Engineering (CIMNE), 2018)
Conference report
Restricted access - publisher's policyWall-bounded flows at high Reynolds number are an important research field given that they are present in many important industrial applications. Nonetheless, the use of accurate numerical methodologies such as Large Eddy ... -
An immersed boundary method to conjugate heat transfer problems in complex geometries. Application to an automotive antenna
(2019-02-05)
Article
Restricted access - publisher's policyConsidering that the most common reason for electronic component failure is the excessive temperature level, an efficient thermal management design can prolong the operating life of the equipment, while also increasing its ... -
An OpenCL-based parallel CFD code for simulations on hybrid systems with massively-parallel accelerators
(Elsevier, 2013)
Conference report
Open AccessA parallel finite-volume CFD algorithm for modeling of incompressible flows on hybrid supercomputers is presented. It is based on a symmetry-preserving high-order numerical scheme for structured meshes. A multilevel ... -
A numerical study of liquid atomization regimes by means of conservative level-set simulations
(Elsevier, 2019-01-30)
Article
Restricted access - publisher's policyIn this work, a conservative level-set finite-volume solver for interface-capturing is employed to perform the direct numerical simulation of Liquid Jets discharging into a quiescent air chamber. The scope is to propose a ... -
A-posteriori error estimation for the finite point method with applications to compressible flow
(2017-04-03)
Article
Open AccessAn a-posteriori error estimate with application to inviscid compressible flow problems is presented. The estimate is a surrogate measure of the discretization error, obtained from an approximation to the truncation terms ... -
A Projected Ghost Fluid Method for a mimetic approach for extreme contrast interfaces in multiphase flows
(2018)
Conference report
Restricted access - publisher's policyIn the context of a multimaterial domain, the GFM for the Laplacian operator is reformulated from an algebraic perspective, where operators are represented by matrices. From this perspective, a whole new level of analysis ... -
A review study on the modeling of high-temperature solar thermal collector systems
(2019-09-01)
Article
Restricted access - publisher's policyConcentrated solar power technologies are gaining more attention in the last two decades in order to replace the conventional power technologies and reduce their environmental impact. Among the developed concentrating ... -
Assessment of variational multiscale models for the large eddy simulation of turbulent incompressible flows
(2015-03)
Article
Open AccessIn this work we study the performance of some variational multiscale models (VMS) in the large eddy simulation (LES) of turbulent flows. We consider VMS models obtained by different subgrid scale approximations which include ... -
A time-average filtering technique to improve the efficiency of two-layer wall models for large eddy simulation in complex geometries
(Elsevier, 2019-06-30)
Article
Restricted access - publisher's policyTwo-Layer wall models have been recurrently studied since they represent a good physical model for Large Eddy Simulations with underresolved wall regions. Specifically, those based on the Reynolds Averaged Navier-Stokes ... -
Boundary layer flow control using synthetic jets on the flow over a NACA 0012 airfoil
(2017)
Conference report
Restricted access - publisher's policyNumerical simulations of the flow control using a synthetic jet are presented. The flow considered is around a NACA 0012 airfoil at Re = 5000 and the actuator is located at 6% of the chord from the leading edge. This work ... -
CFD study of the supercritical transesterification of triolein: Wall-to-fluid/particle-to fluid transport effects
(2019-01-01)
Article
Restricted access - publisher's policyTransesterification of triglycerides is a process by which biodiesel is produced. Biodiesel is a sustainable alternative to petroleum diesel; hence, its efficient production is of significant importance. The transesterification ...
