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Accelerating fluid-solid simulations (Lattice-Boltzmann & Immersed-Boundary) on heterogeneous architectures
(2015-12-31)
We propose a numerical approach based on the Lattice-Boltzmann (LBM) and Immersed Boundary (IB) methods to tackle the problem of the interaction of solids with an incompressible fluid flow, and its implementation on ...
A Non-uniform Staggered Cartesian Grid approach for Lattice-Boltzmann method
(2015-12-31)
We propose a numerical approach based on the Lattice-Boltzmann method (LBM) for dealing with mesh refinement of Non-uniform Staggered Cartesian Grid. We explain, in detail, the strategy for mapping LBM over such geometries. ...
LBM-HPC - An open-source tool for fluid simulations. Case study: Unified parallel C (UPC-PGAS)
(2015-12-31)
The main motivation of this work is the evaluation of the Unified Parallel C (UPC) model, for Boltzmann-fluid simulations. UPC is one of the current models in the so-called Partitioned Global Address Space paradigm. This ...
Adaptive simulation of unsteady flow past the submerged part of a floating wind turbine platform
Jansson, J.; Nava, V.
; Sanchez, M.; Aguirre, G.; de Abreu, R.V.; Hoffman, J.; Villate, J.L. (2015-12-31)
; Sanchez, M.; Aguirre, G.; de Abreu, R.V.; Hoffman, J.; Villate, J.L. (2015-12-31)
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 ...
Towards a parameter-free method for high Reynolds number turbulent flow simulation based on adaptive finite element approximation
Hoffman, J.; Jansson, J.; Jansson, N.; de Abreu, R.V. (2015-05-01)
; Jansson, J.; Jansson, N.; de Abreu, R.V. (2015-05-01)
This article is a review of our work towards a parameter-free 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 ...
Time-resolved adaptive FEM simulation of the DLR-F11 aircraft model at high Reynolds number
Hoffman, J.; Jansson, J.; Jansson, N.; de Abreu, R.V. (2014-12-31)
; Jansson, J.; Jansson, N.; de Abreu, R.V. (2014-12-31)
We present a time-resolved, adaptive finite element method for aerodynamics, together with the results from the HiLiftPW-2 workshop, where this method is used to compute the ow past a DLR-F11 aircraft model at realistic ...
Framework for adaptive fluid-structure interaction with industrial applications
Jansson, J.; Degirmenci, N.C.; Hoffman, J. (2013-12-31)
(2013-12-31)
We present developments in the Unicorn-HPC framework for unified continuum mechanics, enabling adaptive finite element computation of fluid-structure interaction, and an overview of the larger FEniCS-HPC framework for ...
A two-level finite element discretization of the streamfunction formulation of the stationary quasi-geostrophic equations of the ocean
(2013-12-31)
In this paper we proposed a two-level finite element discretization of the nonlinear stationary quasi-geostrophic equations, which model the wind driven large scale ocean circulation. Optimal error estimates for the two-level ...
Towards the development of adaptive finite element methods for internal flow aeroacoustics
de Abreu, R.V.; Hoffman, J.; Jansson, J. (2013-12-31)
; Jansson, J. (2013-12-31)
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
Hoffman, J.; Jansson, J.; de Abreu, R.V. (2013-12-31)
; Jansson, J.; de Abreu, R.V. (2013-12-31)
This is a summary of preliminary results from simulations with the 30P30N high-lift device. We used the General Galerkin finite element method (G2), where no explicit subgrid model is used, and where the computational mesh ...