Automating the finite element method

A Logg - Archives of Computational Methods in Engineering, 2007 - Springer
The finite element method can be viewed as a machine that automates the discretization of
differential equations, taking as input a variational problem, a finite element and a mesh, and …

Electron dynamics in extended systems within real-time time-dependent density-functional theory

A Kononov, CW Lee, TP dos Santos, B Robinson… - MRS …, 2022 - Springer
Due to a beneficial balance of computational cost and accuracy, real-time time-dependent
density-functional theory has emerged as a promising first-principles framework to describe …

A 2 per cent distance to z = 0.35 by reconstructing baryon acoustic oscillations – I. Methods and application to the Sloan Digital Sky Survey

N Padmanabhan, X Xu, DJ Eisenstein… - Monthly Notices of …, 2012 - academic.oup.com
We present the first application to density field reconstruction to a galaxy survey to undo the
smoothing of the baryon acoustic oscillation (BAO) feature due to non-linear gravitational …

Aerodynamic shape optimization investigations of the common research model wing benchmark

Z Lyu, GKW Kenway, JRRA Martins - AIAA journal, 2015 - arc.aiaa.org
Despite considerable research on aerodynamic shape optimization, there is no standard
benchmark problem allowing researchers to compare results. This work addresses this …

Electric field simulations for transcranial brain stimulation using FEM: an efficient implementation and error analysis

GB Saturnino, KH Madsen… - Journal of neural …, 2019 - iopscience.iop.org
Objective. Transcranial magnetic stimulation (TMS) and transcranial electric stimulation
(TES) modulate brain activity non-invasively by generating electric fields either by …

A compiler for variational forms

RC Kirby, A Logg - ACM Transactions on Mathematical Software (TOMS), 2006 - dl.acm.org
As a key step towards a complete automation of the finite element method, we present a new
algorithm for automatic and efficient evaluation of multilinear variational forms. The algorithm …

Stochastic relativistic advection diffusion equation from the Metropolis algorithm

G Başar, J Bhambure, R Singh, D Teaney - Physical Review C, 2024 - APS
We study an approach to simulating the stochastic relativistic advection-diffusion equation
based on the Metropolis algorithm. We show that the dissipative dynamics of the boosted …

Multidimensional modeling of pyrolysis gas transport inside charring ablative materials

H Weng, A Martin - Journal of Thermophysics and Heat Transfer, 2014 - arc.aiaa.org
The behavior of pyrolysis gas transport in arcjet test samples is numerically studied. The
simulation of the pyrolysis gas flow inside a porous material is presented, using two different …

-linear resistivity, optical conductivity, and Planckian transport for a holographic local quantum critical metal in a periodic potential

F Balm, N Chagnet, S Arend, J Aretz, K Grosvenor… - Physical Review B, 2023 - APS
High-T c cuprate strange metals are characterized by a DC resistivity that scales linearly with
T from the onset of superconductivity to the crystal melting temperature, characterized by a …

Adaptive finite element modeling of phase-field fracture driven by hydrogen embrittlement

M Dinachandra, A Alankar - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
The effect of hydrogen on crack propagation has been studied extensively using various
numerical algorithms. Recently, phase-field models have been developed that can predict …