A fast immersed boundary method for external incompressible viscous flows using lattice Green's functions

S Liska, T Colonius - Journal of Computational Physics, 2017 - Elsevier
A new parallel, computationally efficient immersed boundary method for solving three-
dimensional, viscous, incompressible flows on unbounded domains is presented. Immersed …

[HTML][HTML] Projection-based reduced order models for a cut finite element method in parametrized domains

EN Karatzas, F Ballarin, G Rozza - Computers & Mathematics with …, 2020 - Elsevier
This work presents a reduced order modeling technique built on a high fidelity embedded
mesh finite element method. Such methods, and in particular the CutFEM method, are …

A method of immersed layers on Cartesian grids, with application to incompressible flows

JD Eldredge - Journal of Computational Physics, 2022 - Elsevier
The immersed boundary method (IBM) of Peskin (J. Comput. Phys., 1977), and derived
forms such as the projection method of Taira and Colonius (J. Comput. Phys., 2007), have …

[图书][B] Fast direct solvers for elliptic PDEs

PG Martinsson - 2019 - SIAM
In writing this book, I set out to create an accessible introduction to fast multipole methods
(FMMs) and techniques based on integral equation formulations. These are powerful tools …

On the lift-optimal aspect ratio of a revolving wing at low Reynolds number

T Jardin, T Colonius - Journal of The Royal Society …, 2018 - royalsocietypublishing.org
Lentink & Dickinson (2009 J. Exp. Biol. 212, 2705–2719.(doi: 10.1242/jeb. 022269)) showed
that rotational acceleration stabilized the leading-edge vortex on revolving, low aspect ratio …

Lattice Green's functions for high-order finite difference stencils

J Gabbard, WM van Rees - SIAM Journal on Numerical Analysis, 2024 - SIAM
Lattice Green's functions (LGFs) are fundamental solutions to discretized linear operators,
and as such they are a useful tool for solving discretized elliptic PDEs on domains that are …

Improvement of remeshed Lagrangian methods for the simulation of dissolution processes at pore-scale

JM Etancelin, P Moonen, P Poncet - Advances in Water Resources, 2020 - Elsevier
This article shows how to consistently and accurately manage the Lagrangian formulation of
chemical reaction equations coupled with the superficial velocity formalism introduced in the …

On the deviation of computed permeability induced by unresolved morphological features of the pore space

S Perez, P Moonen, P Poncet - Transport in Porous Media, 2022 - Springer
This article describes how much the computed absolute permeability is impacted by the slip
effect at the fluid/solid interface, in the context of single-phase pore-scale flow. While this …

Velocity gradient analysis of a head-on vortex ring collision

R Arun, T Colonius - Journal of Fluid Mechanics, 2024 - cambridge.org
We simulate the head-on collision between vortex rings with circulation Reynolds numbers
of 4000 using an adaptive, multiresolution solver based on the lattice Green's function. The …

Application of a lattice Boltzmann method to some challenges related to micro-air vehicles

N Gourdain, T Jardin, R Serre… - … Journal of Micro Air …, 2018 - journals.sagepub.com
The demand for micro-air vehicles is increasing as well as their potential missions. Whether
for discretion in military operations or noise pollution in civilian use, the improvement of …