Browsing by Author "Baez Vidal, Aleix"
Now showing items 1-11 of 11
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A filtered kinetic energy preserving finite volumes scheme for compressible flows
(2012)
Conference report
Open AccessThe Kinetic Energy Preserving Scheme (KEP) for compressible flows has been shown to solve 1-D shock waves without smearing them. The method does not add numerical diffusion to solutions but, as a counterpart, it needs ... -
A General Method to Compute Numerical Dispersion Error
(2021)
Conference report
Open AccessThis article presents a new methodology to compute numerical dispersion error. The analysis here presented is not restricted to uniform structured meshes nor linear discrete operators as it does not rely on sinusoids to ... -
A new general method to compute dispersion errors on Cartesian stretched meshes for both linear and non-linear operators
(2022-02-01)
Article
Restricted access - publisher's policyThe present article presents a new analysis for the dispersion error and the methodology to evaluate it numerically. Here we present the spectral properties of several convective schemes, including non-linear ones, on ... -
Direct numerical simulation and Large-Eddy simulations of the turbulent flow around a NACA-0012 airfoil
(2011)
Conference report
Open AccessThis paper investigates the capabilities of two subgrid-scale (SGS) models for predicting the complex flow in transitional separated bubbles. We consider here the flow over a NACA 0012 airfoil at Reynolds number Re = 5×10 ... -
Direct Numerical Simulation of the turbulent flow around a NACA 0012 airfoil at different angles of attack
(2011)
Conference report
Open AccessDirect numerical simulations (DNS) of the flow dynamics over a NACA 0012 airfoil at Reynolds number Re = 5×104 at different angles of attack are presented. The dynamic of the large separation bubble, characterised by laminar ... -
Filtering in the numerical simulation of turbulent compressible flow with sysmmetry preserving discretizations
(Universitat Politècnica de Catalunya, 2019-01-10)
Doctoral thesis
Open AccessThe present thesis investigates how explicit filters can be useful in numerical simulations of turbulent, compressible flow with symmetry preserving discretizations. Such explicit filters provide stability to simulations ... -
Flow over a realistic car model: wall modeled large eddy simulations assessment and unsteady effects
(2018-03-01)
Article
Open AccessNumerical simulations are carried out on the flow over a realistic generic car geometry, the DrivAer-fastback car model. Pure large eddy simulations (LES) and wall-modeled large eddy simulations (WMLES) are used and compared ... -
On the extension of LES methods from incompressible to compressible turbulent flows with application to turbulent channel flow
(Institute of Physics (IOP), 2016)
Conference report
Open AccessThe objective of the present work is to validate the compressible Large-Eddy Simulation (LES) models implemented in the in house parallel unstructured CFD code TermoFluids. Our research team has implemented and tested ... -
On the extension of RANS/LES methods from incom-pressible to compressible transonic turbulent flows with SBLI
(Begell House, 2015)
Conference report
Restricted access - publisher's policyIn the present work, a compressible extension of the incompressible RANS and LES models implemented in TermoFluids is carried out. The objective is to solve compressible turbulent flows, i.e. high-Reynolds and high-Mach ... -
On the properties of discrete spatial filters for CFD
(2016-12-01)
Article
Open AccessThe spatial filtering of variables in the context of Computational Fluid Dynamics (CFD) is a common practice. Most of the discrete filters used in CFD simulations are locally accurate models of continuous operators. However, ... -
Parallel large eddy simulations of wind farms with the actuator line method
(Elsevier, 2013)
Conference report
Open AccessParallel Computation of wind farm Large Eddy Simulations (LES) requires the use of with Wind Turbine Models (WTM). CFD and WTM demand different domain decompositions as optimal CFD and WTM decompositions do not necessarily ...
