80 citations · 317 across the 21 of their papers we have counts for
22 papers
PCIC: Cylindrical Volume Moment Calculation and Interface Reconstruction for Sub-Grid Modeling in Volume of Fluid Methods
Andrew Cahaly, Valentin Wasquel, Zonghao Zou +2
The accurate modeling of topology changes remains a significant challenge in geometric Volume of Fluid (VOF) simulations. When using traditional single-plane reconstruction (PLIC),…
Sharp front tracking with geometric interface reconstruction
Christian Gorges, Fabien Evrard, Robert Chiodi +2
This paper presents a novel sharp front-tracking method designed to address limitations in classical front-tracking approaches, specifically their reliance on smooth interpolation…
Steady undisturbed velocity correction scheme for Euler-Lagrange simulations near planar walls
Akshay Chandran, Fabien Evrard, Berend van Wachem
Euler-Lagrange (EL) point-particle simulations rely on hydrodynamic force closure models to accurately predict particle dynamics in flows. The closure models currently employed for…
PLIC-Net: A Machine Learning Approach for 3D Interface Reconstruction in Volume of Fluid Methods
Andrew Cahaly, Fabien Evrard, Olivier Desjardins
The accurate reconstruction of immiscible fluid-fluid interfaces from the volume fraction field is a critical component of geometric Volume of Fluid (VOF) methods. A common strateg…
A semi-analytical transient undisturbed velocity correction scheme for wall-bounded two-way coupled Euler-Lagrange simulations
Akshay Chandran, Fabien Evrard, Berend van Wachem
In the present paper, we model the velocity disturbance generated by a regularized forcing near a planar wall, which, along with the temporal nature of the forcing, provides an est…
Undisturbed velocity recovery with transient and weak inertia effects in volume-filtered simulations of particle-laden flows
Fabien Evrard, Akshay Chandran, Ricardo Cortez +1
In volume-filtered Euler-Lagrange simulations of particle-laden flows, the fluid forces acting on a particle are estimated using reduced models, which rely on the knowledge of the…
Study and derivation of closures in the volume-filtered framework for particle-laden flows
Max Hausmann, Victor Chéron, Fabien Evrard +1
The volume-filtering of the Navier-Stokes equations allows to consider the effect that particles have on the fluid without further assumptions, but closures arise of which the impl…
Simulating interfacial flows: a farewell to planes
Fabien Evrard, Robert Chiodi, Berend van Wachem +1
Over the past decades, the volume-of-fluid (VOF) method has been the method of choice for simulating atomization processes, owing to its unique ability to discretely conserve mass.…
Efficient reduction of vertex clustering using front tracking with surface normal propagation restriction
Christian Gorges, Azur Hodžić, Fabien Evrard +3
A significant computational expense and source of numerical errors in front tracking is the remeshing of the triangulated front, required due to distortion and compaction of the fr…
Wavelet based modeling of subgrid-scales in LES of particle-laden turbulent flows
Max Hausmann, Fabien Evrard, Berend van Wachem
We propose a novel model to obtain the subgrid-scale velocity in the context of large-eddy simulation (LES) of particle-laden turbulent flows, to recover accurate particle statisti…
Comparison of methods for curvature estimation from volume fractions
Austin Han, Fabien Evrard, Olivier Desjardins
This paper evaluates and compares the accuracy and robustness of curvature estimation methods for three-dimensional interfaces represented implicitly by discrete volume fractions o…
Drag, lift and torque correlations for axi-symmetric non-spherical particles in locally non-uniform flows
Victor Chéron, Fabien Evrard, Berend van Wachem
This paper derives new correlations to predict the drag, lift and torque coefficients of axi-symmetric non-spherical rod-like particles for several fluid flow regimes and velocity…
A large eddy simulation model for two-way coupled particle-laden turbulent flows
Max Hausmann, Fabien Evrard, Berend van Wachem
In this paper we propose a new modeling framework for large eddy simulations (LES) of particle-laden turbulent flows that captures the interaction between the particle and fluid ph…
A hybrid immersed boundary method for dense particle-laden flows
Victor Chéron, Fabien Evrard, Berend van Wachem
A novel smooth immersed boundary method (IBM) based on a direct-forcing formulation is proposed to simulate incompressible dense particle-laden flows. This IBM relies on a regulari…
Spectral response between particle and fluid kinetic energy in decaying homogeneous isotropic turbulence
Martin Schiødt, Azur Hodzic, Fabien Evrard +3
In particle-laden turbulence, the Fourier Lagrangian spectrum of each phase is regularly computed, and analytically derived response functions relate the Lagrangian spectrum of the…
Phase proper orthogonal decomposition of non-stationary turbulent flow
Yisheng Zhang, Azur Hodzic, Fabien Evrard +2
A phase proper orthogonal decomposition (Phase POD) method is demonstrated, utilizing phase averaging for the decomposition of spatio-temporal behaviour of statistically non-statio…
First moments of a polyhedron clipped by a paraboloid
Fabien Evrard, Robert Chiodi, Austin Han +2
We provide closed-form expressions for the first moments (i.e., the volume and volume-weighted centroid) of a polyhedron clipped by a paraboloid, that is, of a polyhedron intersect…
Breaching the capillary time-step constraint using a coupled VOF method with implicit surface tension
Fabian Denner, Fabien Evrard, Berend van Wachem
The capillary time-step constraint is the dominant limitation on the applicable time-step in many simulations of interfacial flows with surface tension and, consequently, governs t…
Reducing volume and shape errors in front tracking by divergence-preserving velocity interpolation and parabolic fit vertex positioning
Christian Gorges, Fabien Evrard, Berend van Wachem +1
Volume conservation and shape preservation are two well-known issues related to the advection and remeshing in front tracking. To address these issues, this paper proposes a diverg…
Characterizing Lagrangian particle dynamics in decaying HIT using proper orthogonal decomposition
Martin Schiødt, Azur Hodzic, Fabien Evrard +2
The particle proper orthogonal decomposition (PPOD) is demonstrated on cases of particle flows in decaying homogeneous isotropic turbulence. Data is generated through one-way coupl…
Quantifying the errors of the particle-source-in-cell Euler-Lagrange method
Fabien Evrard, Fabian Denner, Berend van Wachem
The particle-source-in-cell Euler-Lagrange (PSIC-EL) method is widely used to simulate flows laden with particles. Its accuracy, however, is known to deteriorate as the ratio betwe…
Conservative finite-volume framework and pressure-based algorithm for flows of incompressible, ideal-gas and real-gas fluids at all speeds
Fabian Denner, Fabien Evrard, Berend van Wachem
A conservative finite-volume framework, based on a collocated variable arrangement, for the simulation of flows at all speeds, applicable to incompressible, ideal-gas and real-gas…