Exploració per tema "Navier-Stokes equations"
Ara es mostren els items 21-40 de 121
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An explicit/implicit Runge–Kutta-based PFEM model for the simulation of thermally coupled incompressible flows
(Springer, 2020-01)
Article
Accés obertA semi-explicit Lagrangian scheme for the simulation of thermally coupled incompressible flow problems is presented. The model relies on combining an explicit multi-step solver for the momentum equation with an implicit ... -
An implicit stabilized finite element method for the compressible Navier-Stokes equations using finite calculus
(2015-07)
Article
Accés obertA new implicit stabilized formulation for the numerical solution of the compressible Navier-Stokes equations is presented. The method is based on the finite calculus (FIC) scheme using the Galerkin finite element method ... -
Anàlisi de sensibilitat per un model geofísic
(Universitat Politècnica de Catalunya, 2016-09-22)
Treball Final de Grau
Accés restringit per decisió de l'autorLes mesures geològiques per identificar paràmetres geofísics es comparen amb el resultat de models numèrics. En particular, per identificar estructures geològiques en escales de l'ordre dels 1000 km, es fan servir models ... -
Application of the finite point method to high- Reynolds number compressible flow problems
(2014-04)
Article
Accés restringit per política de l'editorialIn this work, the finite point method is applied to the solution of high-Reynolds compressible viscous flows. The aim is to explore this important field of applications focusing on two main aspects: the easiness and ... -
Arbitrary Lagrangian-Eulerian formulation for fluid-rigid body interaction
(2001-03)
Article
Accés obertA new formulation for two-dimensional fluid–rigid body interaction problems is developed. In particular, vortex-induced oscillations of a rigid body in viscous incompressible flow are studied. The incompressible Navier–Stokes ... -
Assessment of turbulence modelling in internal flows with detached flow: current improvements within non-zonal hybrid RANS/LES methods
(Universitat Politècnica de Catalunya, 2023-09-25)
Projecte Final de Màster Oficial
Accés obertThis project is dedicated to the study of turbulence models applied to the Navier-Stokes equations to predict turbulent flows. For such purpose, the turbulence is firstly approached from a mathematical point of view, being ... -
Computational resolution of the Navier-Stokes equations for laminar and turbulents flows. Implementation of the Sparlart-Allmaras turbulence model
(Universitat Politècnica de Catalunya, 2020-07-03)
Treball Final de Grau
Accés obertThe present project consists on the computational study and resolution of the Navier-Stokes equations and the physical phenomena involved. The main objective is the development of C++ programming codes to solve flow’s ... -
Convergence towards weak solutions of the Navier-Stokes equations for a finite element approximation with numerical subgrid scale modeling
(2012)
Report de recerca
Accés obertResidual-based stabilized nite element techniques for the Navier-Stokes equations lead to numerical discretizations that provide convection stabilization as well as pressure stability without the need to satisfy an inf-sup ... -
Cost-vs-accuracy analysis of self-adaptive time-integration methods
(Begell House, 2023)
Text en actes de congrés
Accés restringit per política de l'editorialThe integration in time of the semi-discrete Navier-Stokes equations has been historically bounded by the classic CFL condition, and later on, an innovative method has been defined by ensuring the eigenvalues of the method ... -
Coupling Biot and Navier-Stokes problems for fluid-poroelastic structure interaction
(2008-02-05)
Article
Accés obertThe interaction between a fluid and a poroelastic structure is a complex problem that couples the Navier-Stokes equations for the fluid with the Biot system for the structure. The finite element approximation of this problem ... -
Coupling strategies for solving the RANS equations
(Universitat Politècnica de Catalunya, 2020-02-14)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Deutsches Zentrum für Luft-und RaumfahrtFor the present work two implicit methods of coupling the compressible Reynolds Averaged Navier-Stokes equations in conjunction with the one equation Spalart-Allmaras turbulence model have been developed. The first approach, ... -
Derivation of new staggered compact schemes with application to navier-stokes equations
(Multidisciplinary Digital Publishing Institute, 2018-06-29)
Article
Accés obertA method is proposed for the derivation of new classes of staggered compact derivative and interpolation operators. The algorithm has its roots in an implicit interpolation theory consistent with compact schemes and reduces ... -
Development of CFD codes for the numerical resolution of potential flow and the incompressible form of the Navier-Stokes equations.
(Universitat Politècnica de Catalunya, 2019-06-10)
Treball Final de Grau
Accés obertThe aim of this project has been to consolidate and amplify the knowledge on fluid dynamics and CFD. It will be developed and verified different numerical codes for each physical case (potential flow, convection-diffusion ... -
Development of software for the study of fluid dynamics. Aerodynamical applications
(Universitat Politècnica de Catalunya, 2014-09)
Projecte/Treball Final de Carrera
Accés obertCatalà: El present projecte te com a objectiu la creació d’un software propi, utilitzant el llenguatge de programació C++, que permeti resoldre les Equacions de Navier-Stokes de forma numèrica mitjançant la resolució per ... -
DNS of Drag-Force and Reactive Mass Transfer in Gravity-Driven Bubbly Flows
(Springer, 2019)
Text en actes de congrés
Accés restringit per política de l'editorialMass transfer processes in bubbly flows are relevant in both nature and industry. Multiple examples arise from the so-called unit operations of the chemical engineering, where bubble columns are used for separation processes, ... -
DualSPHysics: from fluid dynamics to multiphysics problems
(Springer, 2022-09)
Article
Accés obertDualSPHysics is a weakly compressible smoothed particle hydrodynamics (SPH) Navier–Stokes solver initially conceived to deal with coastal engineering problems, especially those related to wave impact with coastal structures. ... -
Dynamic term-by-term stabilized finite element formulation using orthogonal subgrid-scales for the incompressible Navier–Stokes problem
(2019-06)
Article
Accés obertIn this paper, we propose and analyze the stability and the dissipative structure of a new dynamic term-by-term stabilized finite element formulation for the Navier–Stokes problem that can be viewed as a variational ... -
Dynamics and control of separated flow over small-scale surface deformations with slip
(American Physical Society, 2024)
Article
Accés obertSurface slip was employed to control flow separation induced by small-scale Gaussian-shaped surface deformations on a two-dimensional flat plate. Single-surface deformations, including bumps and gaps, were modeled, which ... -
Error analysis of discontinuous Galerkin methods for Stokes problem under minimal regularity
(2012)
Report de recerca
Accés obertIn this article, we analyze several discontinuous Galerkin methods (DG) for the Stokes problem under the minimal regularity on the solution. We assume that the velocity u belongs to [H1 0 ()]d and the pressure p 2 L2 0 ... -
Error estimates for a viscosity-splitting, finite element method for the incompressible Navier-Stokes equations
(2000)
Article
Accés obert