Consistency of the full and reduced order models for evolve‐filter‐relax regularization of convection‐dominated, marginally‐resolved flows
Numerical stabilization is often used to eliminate (alleviate) the spurious oscillations
generally produced by full order models (FOMs) in under‐resolved or marginally‐resolved …
generally produced by full order models (FOMs) in under‐resolved or marginally‐resolved …
An efficient and modular grad–div stabilization
JA Fiordilino, W Layton, Y Rong - Computer Methods in Applied Mechanics …, 2018 - Elsevier
This paper presents two modular grad–div algorithms for calculating solutions to the Navier–
Stokes equations (NSE). These algorithms add to an NSE code a minimally intrusive module …
Stokes equations (NSE). These algorithms add to an NSE code a minimally intrusive module …
A modular grad-div stabilization for the 2D/3D nonstationary incompressible magnetohydrodynamic equations
X Lu, P Huang - Journal of Scientific Computing, 2020 - Springer
In this paper, we study an efficient and modular grad-div stabilization algorithm for the 2D/3D
nonstationary incompressible magnetohydrodynamic equations. The considered algorithm …
nonstationary incompressible magnetohydrodynamic equations. The considered algorithm …
A second order partitioned method with grad-div stabilization for the non-stationary dual-porosity-Stokes model
Y Li, D Xue, Y Rong, Y Qin - Computers & Mathematics with Applications, 2022 - Elsevier
This paper proposes, analyzes and tests a second-order time-accurate partitioned method
for the coupling dual-porosity-Stokes equations. The algorithm combines a backward …
for the coupling dual-porosity-Stokes equations. The algorithm combines a backward …
A two-level finite element method with grad-div stabilizations for the incompressible Navier–Stokes equations
Y Shang - Journal of Computational and Applied Mathematics, 2024 - Elsevier
This article presents and studies a two-level grad-div stabilized finite element discretization
method for solving numerically the steady incompressible Navier–Stokes equations. The …
method for solving numerically the steady incompressible Navier–Stokes equations. The …
Three-dimensional shear driven turbulence with noise at the boundary
WTL Fan, M Jolly, A Pakzad - Nonlinearity, 2021 - iopscience.iop.org
We consider the incompressible 3D Navier–Stokes equations subject to a shear induced by
noisy movement of part of the boundary. The effect of the noise is quantified by upper …
noisy movement of part of the boundary. The effect of the noise is quantified by upper …
Variational Multiscale Evolve and Filter Strategies for Convection-Dominated Flows
M Strazzullo, F Ballarin, T Iliescu… - arXiv preprint arXiv …, 2024 - arxiv.org
The evolve-filter (EF) model is a filter-based numerical stabilization for under-resolved
convection-dominated flows. EF is a simple, modular, and effective strategy for both full …
convection-dominated flows. EF is a simple, modular, and effective strategy for both full …
On the long time behavior of time relaxation model of fluids
A Pakzad - Physica D: Nonlinear Phenomena, 2020 - Elsevier
The rate of energy dissipation of the time relaxation model in body-force-driven turbulence is
analyzed to evaluate the effect of a time relaxation term on a simulation of 3 d fluid motion …
analyzed to evaluate the effect of a time relaxation term on a simulation of 3 d fluid motion …
On the zeroth law of turbulence for the stochastically forced Navier-Stokes equations
YT Chow, A Pakzad - arXiv preprint arXiv:2004.08655, 2020 - arxiv.org
We consider three-dimensional stochastically forced Navier-Stokes equations subjected to
white-in-time (colored-in-space) forcing in the absence of boundaries. Upper and lower …
white-in-time (colored-in-space) forcing in the absence of boundaries. Upper and lower …
[HTML][HTML] Analysis of mesh effects on turbulent flow statistics
A Pakzad - Journal of Mathematical Analysis and Applications, 2019 - Elsevier
Turbulence models, such as the Smagorinsky model herein, are used to represent the
energy lost from resolved to under-resolved scales due to the energy cascade (ie non …
energy lost from resolved to under-resolved scales due to the energy cascade (ie non …