Results 31 to 40 of about 310,398 (136)

Solid-fluid dynamics of yield-stress fluids

open access: yes, 2014
On the example of two-phase continua experiencing stress induced solid-fluid phase transitions we explore the use of the Euler structure in the formulation of the governing equations.
Grmela, Miroslav   +2 more
core   +1 more source

HPC compact quasi-Newton algorithm for interface problems

open access: yes, 2020
In this work we present a robust interface coupling algorithm called Compact Interface quasi-Newton (CIQN). It is designed for computationally intensive applications using an MPI multi-code partitioned scheme.
Borrell Pol, Ricard   +4 more
core   +1 more source

A partitioned two-step solution algorithm for concurrent fluid flow and stress–strain numerical simulation in solidification processes

open access: yesComputer Methods in Applied Mechanics and Engineering, 2019
One of the critical challenges encountered when modeling solidification processes is to achieve a concurrent and efficient computation of fluid flow and solid mechanics.
Shao-Xiong Zhang   +3 more
semanticscholar   +1 more source

A phase-field method for modeling cracks with frictional contact

open access: yes, 2019
We introduce a phase-field method for continuous modeling of cracks with frictional contacts. Compared with standard discrete methods for frictional contacts, the phase-field method has two attractive features: (1) it can represent arbitrary crack ...
Choo, Jinhyun, Fei, Fan
core   +2 more sources

Rheology of suspensions of viscoelastic spheres: deformability as an effective volume fraction

open access: yes, 2018
We study suspensions of deformable (viscoelastic) spheres in a Newtonian solvent in plane Couette geometry, by means of direct numerical simulations. We find that in the limit of vanishing inertia the effective viscosity $\mu$ of the suspension increases
Brandt, Luca   +2 more
core   +1 more source

The influence of anisotropic growth and geometry on the stress of solid tumors [PDF]

open access: yes, 2017
Solid stresses can affect tumor patho-physiology in at least two ways: directly, by compressing cancer and stromal cells, and indirectly, by deforming blood and lymphatic vessels.
Bravo-Castillero, Julián   +9 more
core   +1 more source

Numerical simulation with hyperelastic constitutive model for high-performance multifilaments used in offshore mooring ropes

open access: yesThe Journal of Engineering and Exact Sciences
The present study addresses the numerical simulation of the stress-strain behavior of synthetic multifilaments subjected to creep, fatigue cycles, and rupture. Understanding the mechanical properties of these materials is essential for various industrial
Daniel Magalhães da Cruz   +9 more
semanticscholar   +1 more source

Bridging the computational gap between mesoscopic and continuum modeling of red blood cells for fully resolved blood flow

open access: yes, 2019
We present a computational framework for the simulation of blood flow with fully resolved red blood cells (RBCs) using a modular approach that consists of a lattice Boltzmann solver for the blood plasma, a novel finite element based solver for the ...
Chopard, Bastien   +2 more
core   +2 more sources

A numerical study of fluids with pressure dependent viscosity flowing through a rigid porous medium [PDF]

open access: yes, 2010
In this paper we consider modifications to Darcy's equation wherein the drag coefficient is a function of pressure, which is a realistic model for technological applications like enhanced oil recovery and geological carbon sequestration. We first outline
Nakshatrala, K. B., Rajagopal, K. R.
core  

A Meshfree Weak- Strong-form (MWS) method for solid and fluid mechanics [PDF]

open access: yes, 2004
Mesh free methods can be largely categorized into two main categories: mesh free methods based on strong forms (e.g. collocation methods) and mesh free methods based on the weak forms (EFG, MLPG, PIM, etc.; see Mesh Free Methods, by G. R. Liu, CRC Press,
Gua, Y.T., Liu, Guirong
core  

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