Wrinkles, creases, and cusps in growing soft matter

M Ben Amar - Reviews of Modern Physics, 2025‏ - APS
The buckling of a soft elastic sample under growth or swelling has highlighted a new interest
in materials science, morphogenesis, and biology or physiology. Indeed, the change of …

Air entrainment through free-surface cusps

J Eggers - Physical review letters, 2001‏ - APS
In many industrial processes, such as pouring a liquid or coating a rotating cylinder, air
bubbles are entrapped inside the liquid. We propose that this is due to air being drawn into …

Lightning Stokes solver

PD Brubeck, LN Trefethen - SIAM Journal on Scientific Computing, 2022‏ - SIAM
Gopal and Trefethen recently introduced “lightning solvers” for the 2D Laplace and
Helmholtz equations, based on rational functions with poles exponentially clustered near …

A cut finite element method for incompressible two-phase Navier–Stokes flows

T Frachon, S Zahedi - Journal of Computational Physics, 2019‏ - Elsevier
We present a space–time Cut Finite Element Method (CutFEM) for the time-dependent
Navier–Stokes equations involving two immiscible incompressible fluids with different …

Quadrature domains and fluid dynamics

D Crowdy - Quadrature Domains and Their Applications: The …, 2005‏ - Springer
Few physical scientists interested in the mathematical description of fluid flows will know
what a quadrature domain is; just as few mathematicians interested in quadrature domain …

A hybrid numerical method for interfacial fluid flow with soluble surfactant

MR Booty, M Siegel - Journal of computational Physics, 2010‏ - Elsevier
We address a significant difficulty in the numerical computation of fluid interfaces with
soluble surfactant that occurs in the physically representative limit of large bulk Peclet …

Two-dimensional Stokes and Hele-Shaw flows with free surfaces

LJ Cummings, SD Howison, JR King - European Journal of Applied …, 1999‏ - cambridge.org
We discuss the application of complex variable methods to Hele-Shaw flows and two-
dimensional Stokes flows, both with free boundaries. We outline the theory for the former, in …

Influence of surfactant on rounded and pointed bubbles in two-dimensional Stokes flow

M Siegel - SIAM Journal on Applied Mathematics, 1999‏ - SIAM
A simple plane flow model is used to examine the effects of surfactant on bubbles evolving
in slow viscous flow. General properties of the time-dependent evolution as well as exact …

An efficient numerical method for studying interfacial motion in two-dimensional cree** flows

MCA Kropinski - Journal of Computational Physics, 2001‏ - Elsevier
We present new methods for computing the motion of two-dimensional closed interfaces in a
slow viscous flow. The interfacial velocity is found through the solution to an integral …

Linear stability analysis of capillary instabilities for concentric cylindrical shells

X Liang, DS Deng, JC Nave… - Journal of Fluid …, 2011‏ - cambridge.org
Motivated by complex multi-fluid geometries currently being explored in fibre-device
manufacturing, we study capillary instabilities in concentric cylindrical flows of fluids with …