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Aeroacoustic Analysis of a Subsonic Jet using the Discontinuous Galerkin Method
Lindblad, D.; Sherwin, S.; Cantwell, C.; Lawrence, J.; Proença, A.; Moragues, M.
(2022)
(2022)
In this work, the open-source spectral/hp element framework Nektar++ (www.nektar.info) is coupled with the Antares library (www.cerfacs.fr/antares/) to predict noise from a subsonic jet. Nektar++ uses the high-order ...
Finite Element simulations: computations and applications to aerodynamics and biomedicine
(2020-12-11)
Partial Differential Equations describe a large number of phenomena of practical interest and their solution usually requires running huge simulations on supercomputing clusters. Especially when dealing with turbulent ...
High Performance Scientific Computing in Applications with Direct Finite Element Simulation
(2020-06-18)
To predict separated flow including stall of a full aircraft with Computational Fluid Dynamics (CFD) is considered one of the problems of the grand challenges to be solved by 2030, according to NASA [1]. The nonlinear ...
Direct FEM computation of turbulent multiphase flow in 3D priting nozzle design
(2020)
In this paper, we present a nozzle design of the 3D printing using FEniCS-HPC
as mathematical and simulation tool. In recent years 3D printing or Additive
Manufacturing (AM) has become a emerging technology and it has ...
Portable simulation framework for diffusion MRI
Nguyen, V.D.; Leoni, M.; Dancheva, T.; Jansson, J.; Hoffman, J.; Wassermann, D.; Li, J.R. (2019-09-23)
; Jansson, J.; Hoffman, J.; Wassermann, D.; Li, J.R. (2019-09-23)
The numerical simulation of the diffusion MRI signal arising from complex tissue micro-structures is helpful for understanding and interpreting imaging data as well as for designing and optimizing MRI sequences. The ...
A C 0 interior penalty discontinuous Galerkin Method for fourth-order total variation flow. II: Existence and uniqueness
(2019-02-25)
We prove the existence and uniqueness of a solution of a C0 Interior Penalty Discontinuous Galerkin (C0 IPDG) method for the numerical solution of a fourth‐order total variation flow problem that has been developed in part ...
A C0 interior penalty discontinuous Galerkin method for fourth‐order total variation flow I: Derivation of the method and numerical results
(2019-02-23)
We consider the numerical solution of a fourth‐order total variation flow problem representing surface relaxation below the roughening temperature. Based on a regularization and scaling of the nonlinear fourth‐order parabolic ...
Control of distributed parameter systems modelled by parabolic variational inequalities of the obstacle type
(2019)
We will investigate the numerical solution of the control problem modelled by parabolic variational inequalities. The general point of view adopted in this work has its roots in the work by R. Glowinski. The optimal control ...
Computability and Adaptivity in CFD
Hoffman, J.; Jansson, J.; Jansson, N.; Vilela De Abreu, R.; Johnson, C. (2019)
; Jansson, J.; Jansson, N.; Vilela De Abreu, R.; Johnson, C. (2019)
We give a brief introduction to research on adaptive computational methods for laminar compressible and incompressible flow, and then focus on computability and adaptivity for turbulent incompressible flow, where we present ...
Numerical simulation of the von Kármán sodium dynamo experiment
(2018-09-03)
We present hydrodynamic and magnetohydrodynamic (MHD) simulations of liquid sodium flows in the von Kármán sodium (VKS) set-up. The counter-rotating impellers made of soft iron that were used in the successful 2006 experiment ...