CFD Computational Technology: Envíos recientes
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Towards the development of adaptive finite element methods for internal flow aeroacoustics
(20131231)We report the latest results obtained in the development of an adaptive finite element method for computational aeroacoustics (CAA). The new methodology is based on the General Galerkin (G2) method, which has been successfully ... 
Computation of slat noise sources using adaptive FEM and lighthill's analogy
(20131231)This is a summary of preliminary results from simulations with the 30P30N highlift device. We used the General Galerkin finite element method (G2), where no explicit subgrid model is used, and where the computational mesh ... 
Framework for adaptive fluidstructure interaction with industrial applications
(20131231)We present developments in the UnicornHPC framework for unified continuum mechanics, enabling adaptive finite element computation of fluidstructure interaction, and an overview of the larger FEniCSHPC framework for ... 
A twolevel finite element discretization of the streamfunction formulation of the stationary quasigeostrophic equations of the ocean
(20131231)In this paper we proposed a twolevel finite element discretization of the nonlinear stationary quasigeostrophic equations, which model the wind driven large scale ocean circulation. Optimal error estimates for the twolevel ... 
Multipreconditioned GMRES for Shifted Systems
(20170101)An implementation of GMRES with multiple preconditioners (MPGMRES) is proposed for solving shifted linear systems with shiftandinvert preconditioners. With this type of preconditioner, the Krylov subspace can be built ... 
Leveraging the performance of LBMHPC for large sizes on GPUs using ghost cells
(20161125)Today, we are living a growing demand of larger and more efficient computational resources from the scientific community. On the other hand, the appearance of GPUs for general purpose computing supposed an important advance ... 
A FEniCSHPC framework for multicompartment BlochTorrey models
(20161130)In diffusion nuclear magnetic resonance (NMR) and diffusion magnetic resonance imaging (MRI), the multicompartment BlochTorrey equation plays an important role in probing the diffusion characteristics from a nanometer ... 
Direct FEM large scale computation of turbulent multiphase flow in urban water systems and marine energy
(20161130)HighReynolds number turbulent incompressible multiphase flow represents a large class of engineering problems of key relevance to society. Here we describe our work on modeling two such problems: 1. The Consorcio de Aguas ... 
Leveraging the Performance of LBMHPC for Large Sizes on GPUs using Ghost Cells
(20161110)Today, we are living a growing demand of larger and more efficient computational resources from the scienti c community. On the other hand, the appearance of GPUs for general purpose computing supposed an important advance ... 
New Theory of Flight
(20160101)We present a new mathematical theory explaining the fluid mechanics of subsonic flight, which is fundamentally different from the existing boundary layercirculation theory by Prandtl–Kutta–Zhukovsky formed 100 year ago. ... 
Accelerating fluidsolid simulations (LatticeBoltzmann & ImmersedBoundary) on heterogeneous architectures
(20151231)We propose a numerical approach based on the LatticeBoltzmann (LBM) and Immersed Boundary (IB) methods to tackle the problem of the interaction of solids with an incompressible fluid flow, and its implementation on ... 
Multidomain grid refinement for latticeBoltzmann simulations on heterogeneous platforms
(20160101)The main contribution of the present work consists of several parallel approaches for grid refinement based on a multidomain decomposition for latticeBoltzmann simulations. The proposed method for discretizing the fluid ... 
Manytask computing on manycore architectures
(20160101)ManyTask Computing (MTC) is a common scenario for multiple parallel systems, such as cluster, grids, cloud and supercomputers, but it is not so popular in shared memory parallel processors. In this sense and given the ... 
Adaptive simulation of unsteady flow past the submerged part of a floating wind turbine platform
(20151231)Offshore floating platforms for wind turbines represent challenging concepts for designers trying to combine an optimal compromise between cost effectiveness and performance. Modelling of the hydrodynamic behaviour of the ... 
FEniCSHPC: Automated predictive highperformance finite element computing with applications in aerodynamics
(20160101)Developing multiphysics finite element methods (FEM) and scalable HPC implementations can be very challenging in terms of software complexity and performance, even more so with the addition of goaloriented adaptive mesh ... 
Introduction to the special issue on high performance computing solutions for complex problems
(20160101)[No abstract available] 
Timeresolved adaptive FEM simulation of the DLRF11 aircraft model at high Reynolds number
(20141231)We present a timeresolved, adaptive finite element method for aerodynamics, together with the results from the HiLiftPW2 workshop, where this method is used to compute the ow past a DLRF11 aircraft model at realistic ... 
A Nonuniform Staggered Cartesian Grid approach for LatticeBoltzmann method
(20151231)We propose a numerical approach based on the LatticeBoltzmann method (LBM) for dealing with mesh refinement of Nonuniform Staggered Cartesian Grid. We explain, in detail, the strategy for mapping LBM over such geometries. ... 
LBMHPC  An opensource tool for fluid simulations. Case study: Unified parallel C (UPCPGAS)
(20151231)The main motivation of this work is the evaluation of the Unified Parallel C (UPC) model, for Boltzmannfluid simulations. UPC is one of the current models in the socalled Partitioned Global Address Space paradigm. This ... 
Towards a parameterfree method for high Reynolds number turbulent flow simulation based on adaptive finite element approximation
(20150501)This article is a review of our work towards a parameterfree method for simulation of turbulent flow at high Reynolds numbers. In a series of papers we have developed a model for turbulent flow in the form of weak solutions ...