Results 11 to 20 of about 6,378 (133)

High-order numerical methods for 2D parabolic problems in single and composite domains [PDF]

open access: yes, 2017
In this work, we discuss and compare three methods for the numerical approximation of constant- and variable-coefficient diffusion equations in both single and composite domains with possible discontinuity in the solution/flux at interfaces, considering (
Epshteyn, Yekaterina   +6 more
core   +2 more sources

Bifurcations in valveless pumping techniques from a coupled fluid-structure-electrophysiology model in heart development [PDF]

open access: yes, 2017
We explore an embryonic heart model that couples electrophysiology and muscle-force generation to flow induced using a $2D$ fluid-structure interaction framework based on the immersed boundary method.
Battista, Nicholas A., Miller, Laura A.
core   +2 more sources

On the damped oscillations of an elastic quasi-circular membrane in a two-dimensional incompressible fluid [PDF]

open access: yes, 2014
We propose a procedure - partly analytical and partly numerical - to find the frequency and the damping rate of the small-amplitude oscillations of a massless elastic capsule immersed in a two-dimensional viscous incompressible fluid. The unsteady Stokes
Afonso, Marco Martins   +2 more
core   +2 more sources

Property of seamless immersed boundary method for large eddy simulation of incompressible turbulent flows

open access: yesJournal of Fluid Science and Technology, 2014
In this paper, the simulations of incompressible turbulent flow are presented by applying the seamless immersed boundary method (SIBM) to the large eddy simulation (LES) on the Cartesian grid.
Kyohei TAJIRI   +2 more
doaj   +1 more source

Immersed boundary-finite element model of fluid-structure interaction in the aortic root [PDF]

open access: yes, 2015
It has long been recognized that aortic root elasticity helps to ensure efficient aortic valve closure, but our understanding of the functional importance of the elasticity and geometry of the aortic root continues to evolve as increasingly detailed in ...
A. Cheng   +74 more
core   +3 more sources

The curved kinetic boundary layer of active matter [PDF]

open access: yes, 2017
The finite reorient-time of swimmers leads to a finite run length $\ell$ and the kinetic accumulation boundary layer on the microscopic length scale $\delta$ on a non-penetrating wall.
Brady, John F., Yan, Wen
core   +2 more sources

Modelling mitral valvular dynamics–current trend and future directions [PDF]

open access: yes, 2017
Dysfunction of mitral valve causes morbidity and premature mortality and remains a leading medical problem worldwide. Computational modelling aims to understand the biomechanics of human mitral valve and could lead to the development of new treatment ...
Berry, Colin   +6 more
core   +1 more source

Hybrid finite difference/finite element immersed boundary method [PDF]

open access: yes, 2017
The immersed boundary method is an approach to fluid-structure interaction that uses a Lagrangian description of the structural deformations, stresses, and forces along with an Eulerian description of the momentum, viscosity, and incompressibility of ...
Griffith, Boyce E., Luo, Xiaoyu
core   +3 more sources

The origin of compression influences geometric instabilities in bilayers [PDF]

open access: yes, 2018
Geometric instabilities in bilayered structures control the surface morphology in a wide range of biological and technical systems. Depending on the application, different mechanisms induce compressive stresses in the bilayer.
Andres, Sebastian   +2 more
core   +1 more source

Multivariate Peristalsis in a Straight Rectangular Duct for Carreau Fluids

open access: yesComputation
Peristaltic flow in a straight rectangular duct is examined imposed by contraction pulses implemented by pairs of horizontal cylindrical segments with their axes perpendicular to the flow direction.
Iosif C. Moulinos   +2 more
doaj   +1 more source

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