Physics-informed neural network integrating PointNet-based adaptive refinement for investigating crack propagation in industrial applications

J Tu, C Liu, P Qi - IEEE Transactions on Industrial Informatics, 2022 - ieeexplore.ieee.org
Crack is one of the critical factors that degrade the performance of machinery manufacturing
equipment. Recently, physics-informed neural networks (PINNs) have received attention …

[HTML][HTML] Efficient convergent boundary integral methods for slender bodies

D Malhotra, A Barnett - Journal of Computational Physics, 2024 - Elsevier
The interaction of fibers in a viscous (Stokes) fluid plays a crucial role in industrial and
biological processes, such as sedimentation, rheology, transport, cell division, and …

Integral-based spectral method for inextensible slender fibers in Stokes flow

O Maxian, A Mogilner, A Donev - Physical Review Fluids, 2021 - APS
Every animal cell is filled with a cytoskeleton, a dynamic gel made of inextensible fibers,
such as microtubules, actin fibers, and intermediate filaments, all suspended in a viscous …

Tandem droplet locomotion in a uniform electric field

C Sorgentone, PM Vlahovska - Journal of Fluid Mechanics, 2022 - cambridge.org
An isolated charge-neutral droplet in a uniform electric field experiences no net force.
However, a droplet pair can move in response to field-induced dipolar and hydrodynamic …

[HTML][HTML] IgA-BEM for 3D Helmholtz problems using conforming and non-conforming multi-patch discretizations and B-spline tailored numerical integration

B Degli Esposti, A Falini, T Kanduč, ML Sampoli… - … & Mathematics with …, 2023 - Elsevier
Abstract An Isogeometric Boundary Element Method (IgA-BEM) is considered for the
numerical solution of Helmholtz problems on 3D bounded or unbounded domains, admitting …

Singularity swap quadrature for nearly singular line integrals on closed curves in two dimensions

L af Klinteberg - BIT Numerical Mathematics, 2024 - Springer
This paper presents a quadrature method for evaluating layer potentials in two dimensions
close to periodic boundaries, discretized using the trapezoidal rule. It is an extension of the …

Error estimate based adaptive quadrature for layer potentials over axisymmetric surfaces

D Krantz, AK Tornberg - arXiv preprint arXiv:2412.19575, 2024 - arxiv.org
Layer potentials represent solutions to partial differential equations in an integral equation
formulation. When numerically evaluating layer potentials at evaluation points close to the …

Calculation of Stationary Magnetic Fields Based on the Improved Quadrature Formulas for a Simple Layer Potential

I Reznichenko, P Podržaj, A Peperko - Mathematics, 2023 - mdpi.com
This research deals with precision calculations of stationary magnetic fields of volumetric
bodies. The electrostatics analogy allows for the use of a scalar magnetic potential, which …

Estimation of quadrature errors for layer potentials evaluated near surfaces with spherical topology

C Sorgentone, AK Tornberg - Advances in Computational Mathematics, 2023 - Springer
Numerical simulations with rigid particles, drops, or vesicles constitute some examples that
involve 3D objects with spherical topology. When the numerical method is based on …

Accelerating potential evaluation over unstructured meshes in two dimensions

Z Shen, K Serkh - arXiv preprint arXiv:2205.04401, 2022 - arxiv.org
The accurate and efficient evaluation of potentials is of great importance for the numerical
solution of partial differential equations. When the integration domain of the potential is …