Challenges in computational modeling of two-phase transport in polymer electrolyte fuel cells flow channels: a review

A Jarauta, P Ryzhakov - Archives of Computational Methods in …, 2018 - Springer
Excess of liquid water in gas channels of polymer electrolyte fuel cells is responsible for
malfunctioning of these devices. Not only it decreases their efficiency via partial blockage of …

Unified Lagrangian formulation for solid and fluid mechanics and FSI problems

A Franci, E Onate, JM Carbonell - Computer Methods in Applied Mechanics …, 2016 - Elsevier
We present a Lagrangian monolithic strategy for solving fluid–structure interaction (FSI)
problems. The formulation is called Unified because fluids and solids are solved using the …

A unified arbitrary Lagrangian–Eulerian model for fluid–structure interaction problems involving flows in flexible channels

PB Ryzhakov, J Marti, N Dialami - Journal of Scientific Computing, 2022 - Springer
In this work a finite element-based model for analyzing incompressible flows in flexible
channels is presented. The model treats the fluid–solid interaction problem in a monolithic …

An implicit surface tension model for the analysis of droplet dynamics

A Jarauta, P Ryzhakov, J Pons-Prats… - Journal of Computational …, 2018 - Elsevier
A Lagrangian incompressible fluid flow model is extended by including an implicit surface
tension term in order to analyze droplet dynamics. The Lagrangian framework is adopted to …

Fast fluid–structure interaction simulations using a displacement-based finite element model equipped with an explicit streamline integration prediction

PB Ryzhakov, J Marti, SR Idelsohn, E Oñate - Computer methods in …, 2017 - Elsevier
We propose here a displacement-based updated Lagrangian fluid model developed to
facilitate a monolithic coupling with a wide range of structural elements described in terms of …

Generalized‐α scheme in the PFEM for velocity‐pressure and displacement‐pressure formulations of the incompressible Navier–Stokes equations

E Fernández, S Février, M Lacroix… - International Journal …, 2023 - Wiley Online Library
Despite the increasing use of the particle finite element method (PFEM) in fluid flow
simulation and the outstanding success of the Generalized‐α α (GA) time integration …

Computational modeling of the fluid flow and the flexible intimal flap in type B aortic dissection via a monolithic arbitrary Lagrangian/Eulerian fluid‐structure interaction …

P Ryzhakov, E Soudah… - International journal for …, 2019 - Wiley Online Library
In the present work, we perform numerical simulations of the fluid flow in type B aortic
dissection (AD), accounting for the flexibility of the intimal flap. The interaction of the flow …

An explicit–implicit finite element model for the numerical solution of incompressible Navier–Stokes equations on moving grids

J Marti, PB Ryzhakov - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
In this paper an efficient mesh-moving Finite Element model for the simulation of the
incompressible flow problems is proposed. The model is based on a combination of the …

[HTML][HTML] Stable nodal projection method on octree grids

M Blomquist, SR West, AL Binswanger… - Journal of Computational …, 2024 - Elsevier
We propose a novel collocated projection method for solving the incompressible Navier-
Stokes equations with arbitrary boundaries. Our approach employs non-graded octree grids …

A finite element model for fluid–structure interaction problems involving closed membranes, internal and external fluids

PB Ryzhakov, E Onate - Computer methods in applied mechanics and …, 2017 - Elsevier
In this paper we propose a Finite Element model for analyzing closed membranes (“bags”)
interacting with internal and external (surrounding) fluids. The approach is based on …