Browsing by Subject "Computational fluid dynamics"
Now showing items 1-20 of 384
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3D modelling of transversal grates comparison of numerical result with experimental data
(Universitat Politècnica de Catalunya, 2017-06)
Master thesis
Restricted access - author's decisionThe full scale (1:1) test platform located at the UPC (Universitat Politècnica de Catalunya) allows us to reproduce the local runoff process and the study of inlet grates or other types of capture systems. Over the last ... -
A 1D lumped-parameter/3D CFD approach for pressure drop in the aortic coarctation
(Springer, 2012)
Conference report
Restricted access - publisher's policyAortic Coarctation is a congenital constriction of the aorta that increases blood pressure above the constriction and hinders the flow below it. Based on a 3D surface mesh of a moderate thoracic coarctation, a high quality ... -
A 3D CFD numerical study of the bubble generation process into a bubble Tjunction 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 3D CFD numerical study of the bubble generation process into a bubble Tjunction generator and its comparison with experimental data: Part II
(2016)
Conference report
Open AccessThis work is a continuation of the 3D numerical study of the bubble generation process into a T-junction bubble generator (1 mm of internal diameter) obtained with the commercial Computational Fluid Dynamics solver ANSYS ... -
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 contribution to adaptive numerical solution of compressible flow problems
(International Centre for Numerical Methods in Engineering (CIMNE), 1996)
Book
Open AccessThe monograph presents recent developments on the solution of high speed compressible flow problems using finite element and finite point (meshless) methods with adaptive refinement, techniques. This work treats two of the ... -
A finite point method for compressible flow
(John Wiley & sons, 2002-03)
Article
Open AccessA weighted least squares finite point method for compressible flow is formulated. Starting from a global cloud of points, local clouds are constructed using a Delaunay technique with a series of tests for the quality of ... -
A hierarchical parallel implementation for heterogeneous computing. Application to algebra-based CFD simulations on hybrid supercomputers
(Elsevier, 2021-01)
Article
Restricted access - publisher's policyThe quest for new portable implementations of simulation algorithms is motivated by the increasing variety of computing architectures. Moreover, the hybridization of high-performance computing systems imposes additional ... -
A level-set method for mass transfer in bubble swarms
(2018)
Conference lecture
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 modified Finite Element formulation for the imposition of the slip boundary condition over embedded volumeless geometries
(2019-08)
Article
Restricted access - publisher's policyThis work describes a novel formulation for the simulation of Navier–Stokes problems including embedded objects. The new proposal is based on the use of a modified finite element space, which replaces the standard one ... -
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 ... -
A new statistical model for subgrid dispersion in large eddy simulations of particle-laden flows
(Institute of Physics (IOP), 2016)
Conference report
Open AccessDispersed multiphase turbulent flows are present in many industrial and commercial applications like internal combustion engines, turbofans, dispersion of contaminants, steam turbines, etc. Therefore, there is a clear interest ... -
A numerical strategy to compute optical parameters in turbulent flow: application to telescopes
(2008-07-29)
Article
Open AccessWe present a numerical formulation to compute optical parameters in a turbulent air flow. The basic numerical formulation is a large eddy simulation (LES) of the incompressible Navier-Stokes equations, which are approximated ... -
A numerical study of liquid atomization regimes by means of conservative level-set simulations
(Elsevier, 2019-01-30)
Article
Open AccessIn 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 Parallel CFD Model for Wind Farms
(Elsevier, 2013-06-01)
Article
Open AccessWe present a Computational Fluid Dynamics (CFD) modeling strategy for onshore wind farms aimed at predicting and opti- mizing the production of farms using a CFD model that includes meteorological data assimilation, complex ... -
A parallel three-dimensional radial basis function interpolation method for unstructured dynamic meshes
(2011)
Conference lecture
Open AccessA radial basis function (RBF) interpolation method is implemented to be applied in computational fluid dynamics (CFD) problems with dynamic meshes. It is compared with the classic springs analogy smoothing, focusing on the ... -
A PLIC-VOF implementation on parallel 3D unstructured meshes
(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 priori validation of CFD modelling of hydrocarbon pool fires
(2018-08-04)
Article
Open AccessFires can be an important hazard for the safety of chemical and process industries. Particularly, pool fires are the most frequent fire scenarios in such facilities and can affect other equipment of the plant with severe ...
